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Open Source Computer Vision Library
https://opencv.org/
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984 lines
39 KiB
984 lines
39 KiB
#!/usr/bin/env python |
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from __future__ import print_function |
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import os, sys, re, string, io |
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|
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# the list only for debugging. The real list, used in the real OpenCV build, is specified in CMakeLists.txt |
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opencv_hdr_list = [ |
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"../../core/include/opencv2/core.hpp", |
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"../../core/include/opencv2/core/mat.hpp", |
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"../../core/include/opencv2/core/ocl.hpp", |
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"../../flann/include/opencv2/flann/miniflann.hpp", |
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"../../ml/include/opencv2/ml.hpp", |
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"../../imgproc/include/opencv2/imgproc.hpp", |
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"../../calib3d/include/opencv2/calib3d.hpp", |
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"../../features2d/include/opencv2/features2d.hpp", |
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"../../video/include/opencv2/video/tracking.hpp", |
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"../../video/include/opencv2/video/background_segm.hpp", |
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"../../objdetect/include/opencv2/objdetect.hpp", |
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"../../imgcodecs/include/opencv2/imgcodecs.hpp", |
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"../../videoio/include/opencv2/videoio.hpp", |
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"../../highgui/include/opencv2/highgui.hpp", |
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] |
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""" |
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Each declaration is [funcname, return_value_type /* in C, not in Python */, <list_of_modifiers>, <list_of_arguments>, original_return_type, docstring], |
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where each element of <list_of_arguments> is 4-element list itself: |
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[argtype, argname, default_value /* or "" if none */, <list_of_modifiers>] |
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where the list of modifiers is yet another nested list of strings |
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(currently recognized are "/O" for output argument, "/S" for static (i.e. class) methods |
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and "/A value" for the plain C arrays with counters) |
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original_return_type is None if the original_return_type is the same as return_value_type |
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""" |
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class CppHeaderParser(object): |
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def __init__(self, generate_umat_decls=False, generate_gpumat_decls=False): |
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self._generate_umat_decls = generate_umat_decls |
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self._generate_gpumat_decls = generate_gpumat_decls |
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self.BLOCK_TYPE = 0 |
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self.BLOCK_NAME = 1 |
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self.PROCESS_FLAG = 2 |
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self.PUBLIC_SECTION = 3 |
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self.CLASS_DECL = 4 |
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self.namespaces = set() |
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def batch_replace(self, s, pairs): |
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for before, after in pairs: |
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s = s.replace(before, after) |
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return s |
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def get_macro_arg(self, arg_str, npos): |
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npos2 = npos3 = arg_str.find("(", npos) |
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if npos2 < 0: |
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print("Error: no arguments for the macro at %d" % (self.lineno,)) |
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sys.exit(-1) |
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balance = 1 |
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while 1: |
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t, npos3 = self.find_next_token(arg_str, ['(', ')'], npos3+1) |
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if npos3 < 0: |
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print("Error: no matching ')' in the macro call at %d" % (self.lineno,)) |
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sys.exit(-1) |
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if t == '(': |
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balance += 1 |
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if t == ')': |
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balance -= 1 |
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if balance == 0: |
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break |
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return arg_str[npos2+1:npos3].strip(), npos3 |
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def parse_arg(self, arg_str, argno): |
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""" |
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Parses <arg_type> [arg_name] |
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Returns arg_type, arg_name, modlist, argno, where |
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modlist is the list of wrapper-related modifiers (such as "output argument", "has counter", ...) |
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and argno is the new index of an anonymous argument. |
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That is, if no arg_str is just an argument type without argument name, the argument name is set to |
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"arg" + str(argno), and then argno is incremented. |
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""" |
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modlist = [] |
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# pass 0: extracts the modifiers |
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if "CV_OUT" in arg_str: |
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modlist.append("/O") |
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arg_str = arg_str.replace("CV_OUT", "") |
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if "CV_IN_OUT" in arg_str: |
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modlist.append("/IO") |
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arg_str = arg_str.replace("CV_IN_OUT", "") |
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isarray = False |
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npos = arg_str.find("CV_CARRAY") |
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if npos >= 0: |
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isarray = True |
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macro_arg, npos3 = self.get_macro_arg(arg_str, npos) |
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modlist.append("/A " + macro_arg) |
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arg_str = arg_str[:npos] + arg_str[npos3+1:] |
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npos = arg_str.find("CV_CUSTOM_CARRAY") |
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if npos >= 0: |
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isarray = True |
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macro_arg, npos3 = self.get_macro_arg(arg_str, npos) |
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modlist.append("/CA " + macro_arg) |
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arg_str = arg_str[:npos] + arg_str[npos3+1:] |
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npos = arg_str.find("const") |
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if npos >= 0: |
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modlist.append("/C") |
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npos = arg_str.find("&") |
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if npos >= 0: |
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modlist.append("/Ref") |
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arg_str = arg_str.strip() |
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word_start = 0 |
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word_list = [] |
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npos = -1 |
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#print self.lineno, ":\t", arg_str |
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# pass 1: split argument type into tokens |
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while 1: |
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npos += 1 |
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t, npos = self.find_next_token(arg_str, [" ", "&", "*", "<", ">", ","], npos) |
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w = arg_str[word_start:npos].strip() |
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if w == "operator": |
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word_list.append("operator " + arg_str[npos:].strip()) |
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break |
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if w not in ["", "const"]: |
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word_list.append(w) |
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if t not in ["", " ", "&"]: |
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word_list.append(t) |
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if not t: |
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break |
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word_start = npos+1 |
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npos = word_start - 1 |
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arg_type = "" |
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arg_name = "" |
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angle_stack = [] |
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#print self.lineno, ":\t", word_list |
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# pass 2: decrypt the list |
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wi = -1 |
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prev_w = "" |
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for w in word_list: |
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wi += 1 |
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if w == "*": |
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if prev_w == "char" and not isarray: |
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arg_type = arg_type[:-len("char")] + "c_string" |
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else: |
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arg_type += w |
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continue |
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elif w == "<": |
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arg_type += "_" |
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angle_stack.append(0) |
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elif w == "," or w == '>': |
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if not angle_stack: |
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print("Error at %d: argument contains ',' or '>' not within template arguments" % (self.lineno,)) |
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sys.exit(-1) |
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if w == ",": |
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arg_type += "_and_" |
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elif w == ">": |
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if angle_stack[0] == 0: |
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print("Error at %s:%d: template has no arguments" % (self.hname, self.lineno)) |
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sys.exit(-1) |
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if angle_stack[0] > 1: |
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arg_type += "_end_" |
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angle_stack[-1:] = [] |
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elif angle_stack: |
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arg_type += w |
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angle_stack[-1] += 1 |
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elif arg_type == "struct": |
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arg_type += " " + w |
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elif arg_type and arg_type != "~": |
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arg_name = " ".join(word_list[wi:]) |
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break |
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else: |
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arg_type += w |
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prev_w = w |
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counter_str = "" |
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add_star = False |
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if ("[" in arg_name) and not ("operator" in arg_str): |
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#print arg_str |
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p1 = arg_name.find("[") |
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p2 = arg_name.find("]",p1+1) |
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if p2 < 0: |
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print("Error at %d: no closing ]" % (self.lineno,)) |
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sys.exit(-1) |
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counter_str = arg_name[p1+1:p2].strip() |
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if counter_str == "": |
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counter_str = "?" |
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if not isarray: |
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modlist.append("/A " + counter_str.strip()) |
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arg_name = arg_name[:p1] |
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add_star = True |
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if not arg_name: |
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if arg_type.startswith("operator"): |
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arg_type, arg_name = "", arg_type |
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else: |
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arg_name = "arg" + str(argno) |
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argno += 1 |
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while arg_type.endswith("_end_"): |
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arg_type = arg_type[:-len("_end_")] |
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if add_star: |
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arg_type += "*" |
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arg_type = self.batch_replace(arg_type, [("std::", ""), ("cv::", ""), ("::", "_")]) |
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return arg_type, arg_name, modlist, argno |
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def parse_enum(self, decl_str): |
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l = decl_str |
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ll = l.split(",") |
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if ll[-1].strip() == "": |
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ll = ll[:-1] |
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prev_val = "" |
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prev_val_delta = -1 |
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decl = [] |
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for pair in ll: |
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pv = pair.split("=") |
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if len(pv) == 1: |
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prev_val_delta += 1 |
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val = "" |
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if prev_val: |
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val = prev_val + "+" |
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val += str(prev_val_delta) |
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else: |
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prev_val_delta = 0 |
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prev_val = val = pv[1].strip() |
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decl.append(["const " + self.get_dotted_name(pv[0].strip()), val, [], [], None, ""]) |
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return decl |
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def parse_class_decl(self, decl_str): |
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""" |
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Parses class/struct declaration start in the form: |
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{class|struct} [CV_EXPORTS] <class_name> [: public <base_class1> [, ...]] |
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Returns class_name1, <list of base_classes> |
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""" |
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l = decl_str |
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modlist = [] |
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if "CV_EXPORTS_W_MAP" in l: |
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l = l.replace("CV_EXPORTS_W_MAP", "") |
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modlist.append("/Map") |
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if "CV_EXPORTS_W_SIMPLE" in l: |
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l = l.replace("CV_EXPORTS_W_SIMPLE", "") |
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modlist.append("/Simple") |
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npos = l.find("CV_EXPORTS_AS") |
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if npos >= 0: |
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macro_arg, npos3 = self.get_macro_arg(l, npos) |
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modlist.append("=" + macro_arg) |
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l = l[:npos] + l[npos3+1:] |
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l = self.batch_replace(l, [("CV_EXPORTS_W", ""), ("CV_EXPORTS", ""), ("public virtual ", " "), ("public ", " "), ("::", ".")]).strip() |
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ll = re.split(r'\s+|\s*[,:]\s*', l) |
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ll = [le for le in ll if le] |
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classname = ll[1] |
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bases = ll[2:] |
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return classname, bases, modlist |
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def parse_func_decl_no_wrap(self, decl_str, static_method=False, docstring=""): |
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decl_str = (decl_str or "").strip() |
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virtual_method = False |
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explicit_method = False |
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if decl_str.startswith("explicit"): |
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decl_str = decl_str[len("explicit"):].lstrip() |
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explicit_method = True |
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if decl_str.startswith("virtual"): |
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decl_str = decl_str[len("virtual"):].lstrip() |
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virtual_method = True |
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if decl_str.startswith("static"): |
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decl_str = decl_str[len("static"):].lstrip() |
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static_method = True |
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fdecl = decl_str.replace("CV_OUT", "").replace("CV_IN_OUT", "") |
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fdecl = fdecl.strip().replace("\t", " ") |
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while " " in fdecl: |
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fdecl = fdecl.replace(" ", " ") |
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fname = fdecl[:fdecl.find("(")].strip() |
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fnpos = fname.rfind(" ") |
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if fnpos < 0: |
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fnpos = 0 |
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fname = fname[fnpos:].strip() |
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rettype = fdecl[:fnpos].strip() |
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if rettype.endswith("operator"): |
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fname = ("operator " + fname).strip() |
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rettype = rettype[:rettype.rfind("operator")].strip() |
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if rettype.endswith("::"): |
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rpos = rettype.rfind(" ") |
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if rpos >= 0: |
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fname = rettype[rpos+1:].strip() + fname |
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rettype = rettype[:rpos].strip() |
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else: |
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fname = rettype + fname |
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rettype = "" |
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apos = fdecl.find("(") |
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if fname.endswith("operator"): |
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fname += " ()" |
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apos = fdecl.find("(", apos+1) |
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fname = "cv." + fname.replace("::", ".") |
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decl = [fname, rettype, [], [], None, docstring] |
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# inline constructor implementation |
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implmatch = re.match(r"(\(.*?\))\s*:\s*(\w+\(.*?\),?\s*)+", fdecl[apos:]) |
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if bool(implmatch): |
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fdecl = fdecl[:apos] + implmatch.group(1) |
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args0str = fdecl[apos+1:fdecl.rfind(")")].strip() |
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if args0str != "" and args0str != "void": |
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args0str = re.sub(r"\([^)]*\)", lambda m: m.group(0).replace(',', "@comma@"), args0str) |
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args0 = args0str.split(",") |
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args = [] |
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narg = "" |
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for arg in args0: |
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narg += arg.strip() |
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balance_paren = narg.count("(") - narg.count(")") |
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balance_angle = narg.count("<") - narg.count(">") |
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if balance_paren == 0 and balance_angle == 0: |
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args.append(narg.strip()) |
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narg = "" |
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for arg in args: |
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dfpos = arg.find("=") |
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defval = "" |
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if dfpos >= 0: |
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defval = arg[dfpos+1:].strip() |
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else: |
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dfpos = arg.find("CV_DEFAULT") |
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if dfpos >= 0: |
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defval, pos3 = self.get_macro_arg(arg, dfpos) |
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else: |
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dfpos = arg.find("CV_WRAP_DEFAULT") |
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if dfpos >= 0: |
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defval, pos3 = self.get_macro_arg(arg, dfpos) |
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if dfpos >= 0: |
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defval = defval.replace("@comma@", ",") |
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arg = arg[:dfpos].strip() |
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pos = len(arg)-1 |
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while pos >= 0 and (arg[pos] in "_[]" or arg[pos].isalpha() or arg[pos].isdigit()): |
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pos -= 1 |
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if pos >= 0: |
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aname = arg[pos+1:].strip() |
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atype = arg[:pos+1].strip() |
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if aname.endswith("&") or aname.endswith("*") or (aname in ["int", "String", "Mat"]): |
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atype = (atype + " " + aname).strip() |
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aname = "" |
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else: |
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atype = arg |
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aname = "" |
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if aname.endswith("]"): |
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bidx = aname.find('[') |
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atype += aname[bidx:] |
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aname = aname[:bidx] |
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decl[3].append([atype, aname, defval, []]) |
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if static_method: |
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decl[2].append("/S") |
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if virtual_method: |
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decl[2].append("/V") |
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if explicit_method: |
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decl[2].append("/E") |
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if bool(re.match(r".*\)\s*(const)?\s*=\s*0", decl_str)): |
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decl[2].append("/A") |
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if bool(re.match(r".*\)\s*const(\s*=\s*0)?", decl_str)): |
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decl[2].append("/C") |
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return decl |
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def parse_func_decl(self, decl_str, mat="Mat", docstring=""): |
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""" |
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Parses the function or method declaration in the form: |
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[([CV_EXPORTS] <rettype>) | CVAPI(rettype)] |
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[~]<function_name> |
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(<arg_type1> <arg_name1>[=<default_value1>] [, <arg_type2> <arg_name2>[=<default_value2>] ...]) |
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[const] {; | <function_body>} |
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Returns the function declaration entry: |
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[<func name>, <return value C-type>, <list of modifiers>, <list of arguments>, <original return type>, <docstring>] (see above) |
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""" |
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|
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if self.wrap_mode: |
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if not (("CV_EXPORTS_AS" in decl_str) or ("CV_EXPORTS_W" in decl_str) or ("CV_WRAP" in decl_str)): |
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return [] |
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|
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# ignore old API in the documentation check (for now) |
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if "CVAPI(" in decl_str and self.wrap_mode: |
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return [] |
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|
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top = self.block_stack[-1] |
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func_modlist = [] |
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npos = decl_str.find("CV_EXPORTS_AS") |
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if npos >= 0: |
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arg, npos3 = self.get_macro_arg(decl_str, npos) |
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func_modlist.append("="+arg) |
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decl_str = decl_str[:npos] + decl_str[npos3+1:] |
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npos = decl_str.find("CV_WRAP_AS") |
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if npos >= 0: |
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arg, npos3 = self.get_macro_arg(decl_str, npos) |
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func_modlist.append("="+arg) |
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decl_str = decl_str[:npos] + decl_str[npos3+1:] |
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npos = decl_str.find("CV_WRAP_PHANTOM") |
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if npos >= 0: |
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decl_str, _ = self.get_macro_arg(decl_str, npos) |
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func_modlist.append("/phantom") |
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npos = decl_str.find("CV_WRAP_MAPPABLE") |
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if npos >= 0: |
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mappable, npos3 = self.get_macro_arg(decl_str, npos) |
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func_modlist.append("/mappable="+mappable) |
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classname = top[1] |
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return ['.'.join([classname, classname]), None, func_modlist, [], None, None] |
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|
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virtual_method = False |
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pure_virtual_method = False |
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const_method = False |
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|
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# filter off some common prefixes, which are meaningless for Python wrappers. |
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# note that we do not strip "static" prefix, which does matter; |
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# it means class methods, not instance methods |
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decl_str = self.batch_replace(decl_str, [("static inline", ""), ("inline", ""),\ |
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("CV_EXPORTS_W", ""), ("CV_EXPORTS", ""), ("CV_CDECL", ""), ("CV_WRAP ", " "), ("CV_INLINE", ""), |
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("CV_DEPRECATED", ""), ("CV_DEPRECATED_EXTERNAL", "")]).strip() |
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|
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if decl_str.strip().startswith('virtual'): |
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virtual_method = True |
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|
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decl_str = decl_str.replace('virtual' , '') |
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|
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end_tokens = decl_str[decl_str.rfind(')'):].split() |
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const_method = 'const' in end_tokens |
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pure_virtual_method = '=' in end_tokens and '0' in end_tokens |
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|
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static_method = False |
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context = top[0] |
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if decl_str.startswith("static") and (context == "class" or context == "struct"): |
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decl_str = decl_str[len("static"):].lstrip() |
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static_method = True |
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|
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args_begin = decl_str.find("(") |
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if decl_str.startswith("CVAPI"): |
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rtype_end = decl_str.find(")", args_begin+1) |
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if rtype_end < 0: |
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print("Error at %d. no terminating ) in CVAPI() macro: %s" % (self.lineno, decl_str)) |
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sys.exit(-1) |
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decl_str = decl_str[args_begin+1:rtype_end] + " " + decl_str[rtype_end+1:] |
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args_begin = decl_str.find("(") |
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if args_begin < 0: |
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print("Error at %d: no args in '%s'" % (self.lineno, decl_str)) |
|
sys.exit(-1) |
|
|
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decl_start = decl_str[:args_begin].strip() |
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# handle operator () case |
|
if decl_start.endswith("operator"): |
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args_begin = decl_str.find("(", args_begin+1) |
|
if args_begin < 0: |
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print("Error at %d: no args in '%s'" % (self.lineno, decl_str)) |
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sys.exit(-1) |
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decl_start = decl_str[:args_begin].strip() |
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# TODO: normalize all type of operators |
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if decl_start.endswith("()"): |
|
decl_start = decl_start[0:-2].rstrip() + " ()" |
|
|
|
# constructor/destructor case |
|
if bool(re.match(r'^(\w+::)*(?P<x>\w+)::~?(?P=x)$', decl_start)): |
|
decl_start = "void " + decl_start |
|
|
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rettype, funcname, modlist, argno = self.parse_arg(decl_start, -1) |
|
|
|
# determine original return type, hack for return types with underscore |
|
original_type = None |
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i = decl_start.rfind(funcname) |
|
if i > 0: |
|
original_type = decl_start[:i].replace("&", "").replace("const", "").strip() |
|
|
|
if argno >= 0: |
|
classname = top[1] |
|
if rettype == classname or rettype == "~" + classname: |
|
rettype, funcname = "", rettype |
|
else: |
|
if bool(re.match('\w+\s+\(\*\w+\)\s*\(.*\)', decl_str)): |
|
return [] # function typedef |
|
elif bool(re.match('\w+\s+\(\w+::\*\w+\)\s*\(.*\)', decl_str)): |
|
return [] # class method typedef |
|
elif bool(re.match('[A-Z_]+', decl_start)): |
|
return [] # it seems to be a macro instantiation |
|
elif "__declspec" == decl_start: |
|
return [] |
|
elif bool(re.match(r'\w+\s+\(\*\w+\)\[\d+\]', decl_str)): |
|
return [] # exotic - dynamic 2d array |
|
else: |
|
#print rettype, funcname, modlist, argno |
|
print("Error at %s:%d the function/method name is missing: '%s'" % (self.hname, self.lineno, decl_start)) |
|
sys.exit(-1) |
|
|
|
if self.wrap_mode and (("::" in funcname) or funcname.startswith("~")): |
|
# if there is :: in function name (and this is in the header file), |
|
# it means, this is inline implementation of a class method. |
|
# Thus the function has been already declared within the class and we skip this repeated |
|
# declaration. |
|
# Also, skip the destructors, as they are always wrapped |
|
return [] |
|
|
|
funcname = self.get_dotted_name(funcname) |
|
|
|
if not self.wrap_mode: |
|
decl = self.parse_func_decl_no_wrap(decl_str, static_method, docstring) |
|
decl[0] = funcname |
|
return decl |
|
|
|
arg_start = args_begin+1 |
|
npos = arg_start-1 |
|
balance = 1 |
|
angle_balance = 0 |
|
# scan the argument list; handle nested parentheses |
|
args_decls = [] |
|
args = [] |
|
argno = 1 |
|
|
|
while balance > 0: |
|
npos += 1 |
|
t, npos = self.find_next_token(decl_str, ["(", ")", ",", "<", ">"], npos) |
|
if not t: |
|
print("Error: no closing ')' at %d" % (self.lineno,)) |
|
sys.exit(-1) |
|
if t == "<": |
|
angle_balance += 1 |
|
if t == ">": |
|
angle_balance -= 1 |
|
if t == "(": |
|
balance += 1 |
|
if t == ")": |
|
balance -= 1 |
|
|
|
if (t == "," and balance == 1 and angle_balance == 0) or balance == 0: |
|
# process next function argument |
|
a = decl_str[arg_start:npos].strip() |
|
#print "arg = ", a |
|
arg_start = npos+1 |
|
if a: |
|
eqpos = a.find("=") |
|
defval = "" |
|
modlist = [] |
|
if eqpos >= 0: |
|
defval = a[eqpos+1:].strip() |
|
else: |
|
eqpos = a.find("CV_DEFAULT") |
|
if eqpos >= 0: |
|
defval, pos3 = self.get_macro_arg(a, eqpos) |
|
else: |
|
eqpos = a.find("CV_WRAP_DEFAULT") |
|
if eqpos >= 0: |
|
defval, pos3 = self.get_macro_arg(a, eqpos) |
|
if defval == "NULL": |
|
defval = "0" |
|
if eqpos >= 0: |
|
a = a[:eqpos].strip() |
|
arg_type, arg_name, modlist, argno = self.parse_arg(a, argno) |
|
if self.wrap_mode: |
|
# TODO: Vectors should contain UMat, but this is not very easy to support and not very needed |
|
vector_mat = "vector_{}".format("Mat") |
|
vector_mat_template = "vector<{}>".format("Mat") |
|
|
|
if arg_type == "InputArray": |
|
arg_type = mat |
|
elif arg_type == "InputOutputArray": |
|
arg_type = mat |
|
modlist.append("/IO") |
|
elif arg_type == "OutputArray": |
|
arg_type = mat |
|
modlist.append("/O") |
|
elif arg_type == "InputArrayOfArrays": |
|
arg_type = vector_mat |
|
elif arg_type == "InputOutputArrayOfArrays": |
|
arg_type = vector_mat |
|
modlist.append("/IO") |
|
elif arg_type == "OutputArrayOfArrays": |
|
arg_type = vector_mat |
|
modlist.append("/O") |
|
defval = self.batch_replace(defval, [("InputArrayOfArrays", vector_mat_template), |
|
("InputOutputArrayOfArrays", vector_mat_template), |
|
("OutputArrayOfArrays", vector_mat_template), |
|
("InputArray", mat), |
|
("InputOutputArray", mat), |
|
("OutputArray", mat), |
|
("noArray", arg_type)]).strip() |
|
args.append([arg_type, arg_name, defval, modlist]) |
|
npos = arg_start-1 |
|
|
|
if static_method: |
|
func_modlist.append("/S") |
|
if const_method: |
|
func_modlist.append("/C") |
|
if virtual_method: |
|
func_modlist.append("/V") |
|
if pure_virtual_method: |
|
func_modlist.append("/PV") |
|
|
|
return [funcname, rettype, func_modlist, args, original_type, docstring] |
|
|
|
def get_dotted_name(self, name): |
|
""" |
|
adds the dot-separated container class/namespace names to the bare function/class name, e.g. when we have |
|
|
|
namespace cv { |
|
class A { |
|
public: |
|
f(int); |
|
}; |
|
} |
|
|
|
the function will convert "A" to "cv.A" and "f" to "cv.A.f". |
|
""" |
|
if not self.block_stack: |
|
return name |
|
if name.startswith("cv."): |
|
return name |
|
qualified_name = (("." in name) or ("::" in name)) |
|
n = "" |
|
for b in self.block_stack: |
|
block_type, block_name = b[self.BLOCK_TYPE], b[self.BLOCK_NAME] |
|
if block_type in ["file", "enum"]: |
|
continue |
|
if block_type in ["enum struct", "enum class"] and block_name == name: |
|
continue |
|
if block_type not in ["struct", "class", "namespace", "enum struct", "enum class"]: |
|
print("Error at %d: there are non-valid entries in the current block stack %s" % (self.lineno, self.block_stack)) |
|
sys.exit(-1) |
|
if block_name and (block_type == "namespace" or not qualified_name): |
|
n += block_name + "." |
|
n += name.replace("::", ".") |
|
if n.endswith(".Algorithm"): |
|
n = "cv.Algorithm" |
|
return n |
|
|
|
def parse_stmt(self, stmt, end_token, mat="Mat", docstring=""): |
|
""" |
|
parses the statement (ending with ';' or '}') or a block head (ending with '{') |
|
|
|
The function calls parse_class_decl or parse_func_decl when necessary. It returns |
|
<block_type>, <block_name>, <parse_flag>, <declaration> |
|
where the first 3 values only make sense for blocks (i.e. code blocks, namespaces, classes, enums and such) |
|
""" |
|
stack_top = self.block_stack[-1] |
|
context = stack_top[self.BLOCK_TYPE] |
|
|
|
stmt_type = "" |
|
if end_token == "{": |
|
stmt_type = "block" |
|
|
|
if context == "block": |
|
print("Error at %d: should not call parse_stmt inside blocks" % (self.lineno,)) |
|
sys.exit(-1) |
|
|
|
if context == "class" or context == "struct": |
|
while 1: |
|
colon_pos = stmt.find(":") |
|
if colon_pos < 0: |
|
break |
|
w = stmt[:colon_pos].strip() |
|
if w in ["public", "protected", "private"]: |
|
if w == "public" or (not self.wrap_mode and w == "protected"): |
|
stack_top[self.PUBLIC_SECTION] = True |
|
else: |
|
stack_top[self.PUBLIC_SECTION] = False |
|
stmt = stmt[colon_pos+1:].strip() |
|
break |
|
|
|
# do not process hidden class members and template classes/functions |
|
if not stack_top[self.PUBLIC_SECTION] or stmt.startswith("template"): |
|
return stmt_type, "", False, None |
|
|
|
if end_token == "{": |
|
if not self.wrap_mode and stmt.startswith("typedef struct"): |
|
stmt_type = "struct" |
|
try: |
|
classname, bases, modlist = self.parse_class_decl(stmt[len("typedef "):]) |
|
except: |
|
print("Error at %s:%d" % (self.hname, self.lineno)) |
|
exit(1) |
|
if classname.startswith("_Ipl"): |
|
classname = classname[1:] |
|
decl = [stmt_type + " " + self.get_dotted_name(classname), "", modlist, [], None, docstring] |
|
if bases: |
|
decl[1] = ": " + ", ".join([self.get_dotted_name(b).replace(".","::") for b in bases]) |
|
return stmt_type, classname, True, decl |
|
|
|
if stmt.startswith("class") or stmt.startswith("struct"): |
|
stmt_type = stmt.split()[0] |
|
if stmt.strip() != stmt_type: |
|
try: |
|
classname, bases, modlist = self.parse_class_decl(stmt) |
|
except: |
|
print("Error at %s:%d" % (self.hname, self.lineno)) |
|
exit(1) |
|
decl = [] |
|
if ("CV_EXPORTS_W" in stmt) or ("CV_EXPORTS_AS" in stmt) or (not self.wrap_mode):# and ("CV_EXPORTS" in stmt)): |
|
decl = [stmt_type + " " + self.get_dotted_name(classname), "", modlist, [], None, docstring] |
|
if bases: |
|
decl[1] = ": " + ", ".join([self.get_dotted_name(b).replace(".","::") for b in bases]) |
|
return stmt_type, classname, True, decl |
|
|
|
if stmt.startswith("enum") or stmt.startswith("namespace"): |
|
stmt_list = stmt.rsplit(" ", 1) |
|
if len(stmt_list) < 2: |
|
stmt_list.append("<unnamed>") |
|
return stmt_list[0], stmt_list[1], True, None |
|
|
|
if stmt.startswith("extern") and "\"C\"" in stmt: |
|
return "namespace", "", True, None |
|
|
|
if end_token == "}" and context.startswith("enum"): |
|
decl = self.parse_enum(stmt) |
|
name = stack_top[self.BLOCK_NAME] |
|
return context, name, False, decl |
|
|
|
if end_token == ";" and stmt.startswith("typedef"): |
|
# TODO: handle typedef's more intelligently |
|
return stmt_type, "", False, None |
|
|
|
paren_pos = stmt.find("(") |
|
if paren_pos >= 0: |
|
# assume it's function or method declaration, |
|
# since we filtered off the other places where '(' can normally occur: |
|
# - code blocks |
|
# - function pointer typedef's |
|
decl = self.parse_func_decl(stmt, mat=mat, docstring=docstring) |
|
# we return parse_flag == False to prevent the parser to look inside function/method bodies |
|
# (except for tracking the nested blocks) |
|
return stmt_type, "", False, decl |
|
|
|
if (context == "struct" or context == "class") and end_token == ";" and stmt: |
|
# looks like it's member declaration; append the members to the class declaration |
|
class_decl = stack_top[self.CLASS_DECL] |
|
if ("CV_PROP" in stmt): # or (class_decl and ("/Map" in class_decl[2])): |
|
var_modlist = [] |
|
if "CV_PROP_RW" in stmt: |
|
var_modlist.append("/RW") |
|
stmt = self.batch_replace(stmt, [("CV_PROP_RW", ""), ("CV_PROP", "")]).strip() |
|
var_list = stmt.split(",") |
|
var_type, var_name1, modlist, argno = self.parse_arg(var_list[0], -1) |
|
var_list = [var_name1] + [i.strip() for i in var_list[1:]] |
|
|
|
for v in var_list: |
|
class_decl[3].append([var_type, v, "", var_modlist]) |
|
return stmt_type, "", False, None |
|
|
|
# something unknown |
|
return stmt_type, "", False, None |
|
|
|
def find_next_token(self, s, tlist, p=0): |
|
""" |
|
Finds the next token from the 'tlist' in the input 's', starting from position 'p'. |
|
Returns the first occurred token and its position, or ("", len(s)) when no token is found |
|
""" |
|
token = "" |
|
tpos = len(s) |
|
for t in tlist: |
|
pos = s.find(t, p) |
|
if pos < 0: |
|
continue |
|
if pos < tpos: |
|
tpos = pos |
|
token = t |
|
return token, tpos |
|
|
|
def parse(self, hname, wmode=True): |
|
""" |
|
The main method. Parses the input file. |
|
Returns the list of declarations (that can be print using print_decls) |
|
""" |
|
self.hname = hname |
|
decls = [] |
|
f = io.open(hname, 'rt', encoding='utf-8') |
|
linelist = list(f.readlines()) |
|
f.close() |
|
|
|
# states: |
|
SCAN = 0 # outside of a comment or preprocessor directive |
|
COMMENT = 1 # inside a multi-line comment |
|
DIRECTIVE = 2 # inside a multi-line preprocessor directive |
|
DOCSTRING = 3 # inside a multi-line docstring |
|
|
|
state = SCAN |
|
|
|
self.block_stack = [["file", hname, True, True, None]] |
|
block_head = "" |
|
docstring = "" |
|
self.lineno = 0 |
|
self.wrap_mode = wmode |
|
|
|
for l0 in linelist: |
|
self.lineno += 1 |
|
#print(state, self.lineno, l0) |
|
|
|
l = l0.strip() |
|
|
|
if state == SCAN and l.startswith("#"): |
|
state = DIRECTIVE |
|
# fall through to the if state == DIRECTIVE check |
|
|
|
if state == DIRECTIVE: |
|
if not l.endswith("\\"): |
|
state = SCAN |
|
continue |
|
|
|
if state == COMMENT: |
|
pos = l.find("*/") |
|
if pos < 0: |
|
continue |
|
l = l[pos+2:] |
|
state = SCAN |
|
|
|
if state == DOCSTRING: |
|
pos = l.find("*/") |
|
if pos < 0: |
|
docstring += l0 |
|
continue |
|
docstring += l[:pos] + "\n" |
|
l = l[pos+2:] |
|
state = SCAN |
|
|
|
if l.startswith('CV__') or l.startswith('__CV_'): # just ignore these lines |
|
#print('IGNORE: ' + l) |
|
state = SCAN |
|
continue |
|
|
|
if state != SCAN: |
|
print("Error at %d: invalid state = %d" % (self.lineno, state)) |
|
sys.exit(-1) |
|
|
|
while 1: |
|
token, pos = self.find_next_token(l, [";", "\"", "{", "}", "//", "/*"]) |
|
|
|
if not token: |
|
block_head += " " + l |
|
block_head = block_head.strip() |
|
if len(block_head) > 0 and block_head[-1] == ')' and block_head.startswith('CV_ENUM_FLAGS('): |
|
l = '' |
|
token = ';' |
|
else: |
|
break |
|
|
|
if token == "//": |
|
block_head += " " + l[:pos] |
|
l = '' |
|
continue |
|
|
|
if token == "/*": |
|
block_head += " " + l[:pos] |
|
end_pos = l.find("*/", pos+2) |
|
if len(l) > pos + 2 and l[pos+2] == "*": |
|
# '/**', it's a docstring |
|
if end_pos < 0: |
|
state = DOCSTRING |
|
docstring = l[pos+3:] + "\n" |
|
break |
|
else: |
|
docstring = l[pos+3:end_pos] |
|
|
|
elif end_pos < 0: |
|
state = COMMENT |
|
break |
|
l = l[end_pos+2:] |
|
continue |
|
|
|
if token == "\"": |
|
pos2 = pos + 1 |
|
while 1: |
|
t2, pos2 = self.find_next_token(l, ["\\", "\""], pos2) |
|
if t2 == "": |
|
print("Error at %d: no terminating '\"'" % (self.lineno,)) |
|
sys.exit(-1) |
|
if t2 == "\"": |
|
break |
|
pos2 += 2 |
|
|
|
block_head += " " + l[:pos2+1] |
|
l = l[pos2+1:] |
|
continue |
|
|
|
stmt = (block_head + " " + l[:pos]).strip() |
|
stmt = " ".join(stmt.split()) # normalize the statement |
|
#print(stmt) |
|
stack_top = self.block_stack[-1] |
|
|
|
if stmt.startswith("@"): |
|
# Objective C ? |
|
break |
|
|
|
decl = None |
|
if stack_top[self.PROCESS_FLAG]: |
|
# even if stack_top[PUBLIC_SECTION] is False, we still try to process the statement, |
|
# since it can start with "public:" |
|
docstring = docstring.strip() |
|
stmt_type, name, parse_flag, decl = self.parse_stmt(stmt, token, docstring=docstring) |
|
if decl: |
|
if stmt_type.startswith("enum"): |
|
decls.append([stmt_type + " " + self.get_dotted_name(name), "", [], decl, None, ""]) |
|
else: |
|
decls.append(decl) |
|
|
|
if self._generate_gpumat_decls and "cv.cuda." in decl[0]: |
|
# If function takes as one of arguments Mat or vector<Mat> - we want to create the |
|
# same declaration working with GpuMat (this is important for T-Api access) |
|
args = decl[3] |
|
has_mat = len(list(filter(lambda x: x[0] in {"Mat", "vector_Mat"}, args))) > 0 |
|
if has_mat: |
|
_, _, _, gpumat_decl = self.parse_stmt(stmt, token, mat="cuda::GpuMat", docstring=docstring) |
|
decls.append(gpumat_decl) |
|
|
|
if self._generate_umat_decls: |
|
# If function takes as one of arguments Mat or vector<Mat> - we want to create the |
|
# same declaration working with UMat (this is important for T-Api access) |
|
args = decl[3] |
|
has_mat = len(list(filter(lambda x: x[0] in {"Mat", "vector_Mat"}, args))) > 0 |
|
if has_mat: |
|
_, _, _, umat_decl = self.parse_stmt(stmt, token, mat="UMat", docstring=docstring) |
|
decls.append(umat_decl) |
|
|
|
docstring = "" |
|
if stmt_type == "namespace": |
|
chunks = [block[1] for block in self.block_stack if block[0] == 'namespace'] + [name] |
|
self.namespaces.add('.'.join(chunks)) |
|
else: |
|
stmt_type, name, parse_flag = "block", "", False |
|
|
|
if token == "{": |
|
if stmt_type == "class": |
|
public_section = False |
|
else: |
|
public_section = True |
|
self.block_stack.append([stmt_type, name, parse_flag, public_section, decl]) |
|
|
|
if token == "}": |
|
if not self.block_stack: |
|
print("Error at %d: the block stack is empty" % (self.lineno,)) |
|
self.block_stack[-1:] = [] |
|
if pos+1 < len(l) and l[pos+1] == ';': |
|
pos += 1 |
|
|
|
block_head = "" |
|
l = l[pos+1:] |
|
|
|
return decls |
|
|
|
def print_decls(self, decls): |
|
""" |
|
Prints the list of declarations, retrieived by the parse() method |
|
""" |
|
for d in decls: |
|
print(d[0], d[1], ";".join(d[2])) |
|
# Uncomment below line to see docstrings |
|
# print('"""\n' + d[5] + '\n"""') |
|
for a in d[3]: |
|
print(" ", a[0], a[1], a[2], end="") |
|
if a[3]: |
|
print("; ".join(a[3])) |
|
else: |
|
print() |
|
|
|
if __name__ == '__main__': |
|
parser = CppHeaderParser(generate_umat_decls=True, generate_gpumat_decls=True) |
|
decls = [] |
|
for hname in opencv_hdr_list: |
|
decls += parser.parse(hname) |
|
#for hname in sys.argv[1:]: |
|
#decls += parser.parse(hname, wmode=False) |
|
parser.print_decls(decls) |
|
print(len(decls)) |
|
print("namespaces:", " ".join(sorted(parser.namespaces)))
|
|
|