Behdad Esfahbod
14 years ago
parent
d6660356dd
commit
3bb300ee78
6 changed files with 541 additions and 365 deletions
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/*
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* Copyright © 2011 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Google Author(s): Behdad Esfahbod |
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*/ |
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#include "common.hh" |
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void |
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fail (const char *format, ...) |
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{ |
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const char *msg; |
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va_list vap; |
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va_start (vap, format); |
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msg = g_strdup_vprintf (format, vap); |
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g_printerr ("%s: %s\n", g_get_prgname (), msg); |
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exit (1); |
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} |
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/*
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* Copyright © 2011 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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|
* software and its documentation for any purpose, provided that the |
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|
* above copyright notice and the following two paragraphs appear in |
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|
* all copies of this software. |
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|
* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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|
* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Google Author(s): Behdad Esfahbod |
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*/ |
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#ifndef COMMON_HH |
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#define COMMON_HH |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <stdlib.h> |
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#include <stddef.h> |
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#include <string.h> |
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#include <assert.h> |
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#include <stdio.h> |
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#include <math.h> |
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#include <locale.h> |
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#include <hb.h> |
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#include <glib.h> |
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#include <glib/gprintf.h> |
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void fail (const char *format, ...); |
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#endif |
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@ -0,0 +1,318 @@ |
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/*
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* Copyright © 2011 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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|
* software and its documentation for any purpose, provided that the |
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|
* above copyright notice and the following two paragraphs appear in |
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|
* all copies of this software. |
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|
* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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|
* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Google Author(s): Behdad Esfahbod |
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*/ |
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#include "options.hh" |
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view_options_t view_opts[1]; |
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shape_options_t shape_opts[1]; |
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font_options_t font_opts[1]; |
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static gboolean |
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parse_margin (const char *name G_GNUC_UNUSED, |
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const char *arg, |
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gpointer data G_GNUC_UNUSED, |
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GError **error G_GNUC_UNUSED) |
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{ |
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view_options_t::margin_t &m = view_opts->margin; |
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switch (sscanf (arg, "%f %f %f %f", &m.t, &m.r, &m.b, &m.l)) { |
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case 1: m.r = m.t; |
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case 2: m.b = m.t; |
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case 3: m.l = m.r; |
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case 4: return TRUE; |
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default: |
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g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE, |
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"%s argument should be one to four space-separated numbers", |
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name); |
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return FALSE; |
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} |
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} |
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static gboolean |
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parse_shapers (const char *name G_GNUC_UNUSED, |
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const char *arg, |
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gpointer data G_GNUC_UNUSED, |
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GError **error G_GNUC_UNUSED) |
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{ |
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shape_opts->shapers = g_strsplit (arg, ",", 0); |
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return TRUE; |
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} |
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static void |
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parse_space (char **pp) |
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{ |
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char c; |
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#define ISSPACE(c) ((c)==' '||(c)=='\f'||(c)=='\n'||(c)=='\r'||(c)=='\t'||(c)=='\v') |
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while (c = **pp, ISSPACE (c)) |
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(*pp)++; |
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#undef ISSPACE |
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} |
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static hb_bool_t |
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parse_char (char **pp, char c) |
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{ |
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parse_space (pp); |
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if (**pp != c) |
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return FALSE; |
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(*pp)++; |
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return TRUE; |
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} |
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static hb_bool_t |
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parse_uint (char **pp, unsigned int *pv) |
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{ |
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char *p = *pp; |
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unsigned int v; |
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v = strtol (p, pp, 0); |
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if (p == *pp) |
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return FALSE; |
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*pv = v; |
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return TRUE; |
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} |
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static hb_bool_t |
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parse_feature_value_prefix (char **pp, hb_feature_t *feature) |
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{ |
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if (parse_char (pp, '-')) |
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feature->value = 0; |
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else { |
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parse_char (pp, '+'); |
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feature->value = 1; |
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} |
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return TRUE; |
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} |
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static hb_bool_t |
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parse_feature_tag (char **pp, hb_feature_t *feature) |
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{ |
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char *p = *pp, c; |
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parse_space (pp); |
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#define ISALNUM(c) (('a' <= (c) && (c) <= 'z') || ('A' <= (c) && (c) <= 'Z') || ('0' <= (c) && (c) <= '9')) |
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while (c = **pp, ISALNUM(c)) |
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(*pp)++; |
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#undef ISALNUM |
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if (p == *pp) |
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return FALSE; |
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**pp = '\0'; |
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feature->tag = hb_tag_from_string (p); |
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**pp = c; |
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return TRUE; |
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} |
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static hb_bool_t |
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parse_feature_indices (char **pp, hb_feature_t *feature) |
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{ |
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hb_bool_t has_start; |
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feature->start = 0; |
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feature->end = (unsigned int) -1; |
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if (!parse_char (pp, '[')) |
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return TRUE; |
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has_start = parse_uint (pp, &feature->start); |
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if (parse_char (pp, ':')) { |
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parse_uint (pp, &feature->end); |
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} else { |
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if (has_start) |
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feature->end = feature->start + 1; |
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} |
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return parse_char (pp, ']'); |
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} |
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static hb_bool_t |
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parse_feature_value_postfix (char **pp, hb_feature_t *feature) |
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{ |
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return !parse_char (pp, '=') || parse_uint (pp, &feature->value); |
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} |
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static hb_bool_t |
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parse_one_feature (char **pp, hb_feature_t *feature) |
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{ |
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return parse_feature_value_prefix (pp, feature) && |
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parse_feature_tag (pp, feature) && |
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parse_feature_indices (pp, feature) && |
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parse_feature_value_postfix (pp, feature) && |
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(parse_char (pp, ',') || **pp == '\0'); |
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} |
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static void |
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skip_one_feature (char **pp) |
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{ |
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char *e; |
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e = strchr (*pp, ','); |
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if (e) |
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*pp = e + 1; |
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else |
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*pp = *pp + strlen (*pp); |
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} |
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static gboolean |
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parse_features (const char *name G_GNUC_UNUSED, |
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const char *arg, |
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gpointer data G_GNUC_UNUSED, |
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GError **error G_GNUC_UNUSED) |
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{ |
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char *s = (char *) arg; |
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char *p; |
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shape_opts->num_features = 0; |
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shape_opts->features = NULL; |
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if (!*s) |
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return TRUE; |
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/* count the features first, so we can allocate memory */ |
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p = s; |
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do { |
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shape_opts->num_features++; |
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p = strchr (p, ','); |
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if (p) |
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p++; |
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} while (p); |
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shape_opts->features = (hb_feature_t *) calloc (shape_opts->num_features, sizeof (*shape_opts->features)); |
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/* now do the actual parsing */ |
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p = s; |
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shape_opts->num_features = 0; |
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while (*p) { |
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if (parse_one_feature (&p, &shape_opts->features[shape_opts->num_features])) |
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shape_opts->num_features++; |
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else |
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skip_one_feature (&p); |
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} |
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return TRUE; |
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} |
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static gchar * |
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shapers_to_string (void) |
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{ |
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GString *shapers = g_string_new (NULL); |
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const char **shaper_list = hb_shape_list_shapers (); |
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for (; *shaper_list; shaper_list++) { |
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g_string_append (shapers, *shaper_list); |
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g_string_append_c (shapers, ','); |
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} |
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g_string_truncate (shapers, MAX (0, (gint)shapers->len - 1)); |
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return g_string_free (shapers, FALSE); |
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} |
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static G_GNUC_NORETURN gboolean |
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show_version (const char *name G_GNUC_UNUSED, |
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const char *arg G_GNUC_UNUSED, |
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gpointer data G_GNUC_UNUSED, |
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GError **error G_GNUC_UNUSED) |
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{ |
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g_printf ("%s (%s) %s\n", g_get_prgname (), PACKAGE_NAME, PACKAGE_VERSION); |
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char *shapers = shapers_to_string (); |
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g_printf ("Available shapers: %s\n", shapers); |
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g_free (shapers); |
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if (strcmp (HB_VERSION_STRING, hb_version_string ())) |
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g_printf ("Linked HarfBuzz library has a different version: %s\n", hb_version_string ()); |
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exit(0); |
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} |
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void |
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parse_options (int argc, char *argv[]) |
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{ |
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GOptionEntry entries[] = |
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{ |
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{"version", 0, G_OPTION_FLAG_NO_ARG, |
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G_OPTION_ARG_CALLBACK, (gpointer) &show_version, "Show version numbers", NULL}, |
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{"debug", 0, 0, G_OPTION_ARG_NONE, &debug, "Free all resources before exit", NULL}, |
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{"output", 0, 0, G_OPTION_ARG_STRING, &out_file, "Set output file name", "filename"}, |
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{"annotate", 0, 0, G_OPTION_ARG_NONE, &view_opts->annotate, "Annotate output rendering", NULL}, |
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{"background", 0, 0, G_OPTION_ARG_STRING, &view_opts->back, "Set background color", "red/#rrggbb/#rrggbbaa"}, |
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{"foreground", 0, 0, G_OPTION_ARG_STRING, &view_opts->fore, "Set foreground color", "red/#rrggbb/#rrggbbaa"}, |
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{"line-space", 0, 0, G_OPTION_ARG_DOUBLE, &view_opts->line_space, "Set space between lines (default: 0)", "units"}, |
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{"margin", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_margin, "Margin around output", "one to four numbers"}, |
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{"shapers", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_shapers, "Comma-separated list of shapers", "list"}, |
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{"direction", 0, 0, G_OPTION_ARG_STRING, &shape_opts->direction, "Set text direction (default: auto)", "ltr/rtl/ttb/btt"}, |
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{"language", 0, 0, G_OPTION_ARG_STRING, &shape_opts->language, "Set text language (default: $LANG)", "langstr"}, |
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{"script", 0, 0, G_OPTION_ARG_STRING, &shape_opts->script, "Set text script (default: auto)", "ISO-15924 tag"}, |
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{"features", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_features, "Font features to apply to text", "TODO"}, |
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{"face-index", 0, 0, G_OPTION_ARG_INT, &font_opts->face_index, "Face index (default: 0)", "index"}, |
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{"font-size", 0, 0, G_OPTION_ARG_DOUBLE, &font_opts->font_size, "Font size", "size"}, |
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{NULL} |
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}; |
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GError *error = NULL; |
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GError *parse_error = NULL; |
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GOptionContext *context; |
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size_t len; |
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context = g_option_context_new ("- FONT-FILE TEXT"); |
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g_option_context_add_main_entries (context, entries, NULL); |
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if (!g_option_context_parse (context, &argc, &argv, &parse_error)) |
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{ |
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if (parse_error != NULL) |
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fail ("%s", parse_error->message); |
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else |
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fail ("Option parse error"); |
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exit(1); |
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} |
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g_option_context_free(context); |
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if (argc != 3) { |
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g_printerr ("Usage: %s [OPTION...] FONT-FILE TEXT\n", g_get_prgname ()); |
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exit (1); |
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} |
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font_opts->font_file = argv[1]; |
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shape_opts->text = argv[2]; |
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} |
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@ -0,0 +1,86 @@ |
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/*
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* Copyright © 2011 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
||||||
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
||||||
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
||||||
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
||||||
|
* DAMAGE. |
||||||
|
* |
||||||
|
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
||||||
|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
||||||
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
||||||
|
* |
||||||
|
* Google Author(s): Behdad Esfahbod |
||||||
|
*/ |
||||||
|
|
||||||
|
#include "common.hh" |
||||||
|
|
||||||
|
#ifndef OPTIONS_HH |
||||||
|
#define OPTIONS_HH |
||||||
|
|
||||||
|
|
||||||
|
extern struct view_options_t |
||||||
|
{ |
||||||
|
view_options_t (void) { |
||||||
|
memset (this, 0, sizeof (*this)); |
||||||
|
fore = "#000000"; |
||||||
|
back = "#ffffff"; |
||||||
|
margin.t = margin.r = margin.b = margin.l = 18.; |
||||||
|
} |
||||||
|
|
||||||
|
hb_bool_t annotate; |
||||||
|
const char *fore; |
||||||
|
const char *back; |
||||||
|
double line_space; |
||||||
|
struct margin_t { |
||||||
|
double t, r, b, l; |
||||||
|
} margin; |
||||||
|
} view_opts[1]; |
||||||
|
|
||||||
|
extern struct shape_options_t |
||||||
|
{ |
||||||
|
shape_options_t (void) { |
||||||
|
memset (this, 0, sizeof (*this)); |
||||||
|
} |
||||||
|
|
||||||
|
const char *text; |
||||||
|
const char *direction; |
||||||
|
const char *language; |
||||||
|
const char *script; |
||||||
|
hb_feature_t *features; |
||||||
|
unsigned int num_features; |
||||||
|
char **shapers; |
||||||
|
} shape_opts[1]; |
||||||
|
|
||||||
|
extern struct font_options_t |
||||||
|
{ |
||||||
|
font_options_t (void) { |
||||||
|
memset (this, 0, sizeof (*this)); |
||||||
|
font_size = 36.; |
||||||
|
} |
||||||
|
|
||||||
|
const char *font_file; |
||||||
|
int face_index; |
||||||
|
double font_size; |
||||||
|
} font_opts[1]; |
||||||
|
|
||||||
|
|
||||||
|
static const char *out_file = "/dev/stdout"; |
||||||
|
static hb_bool_t debug = FALSE; |
||||||
|
|
||||||
|
|
||||||
|
void parse_options (int argc, char *argv[]); |
||||||
|
|
||||||
|
|
||||||
|
#endif |
||||||
Loading…
Reference in new issue