d530024168
This means the --features indices also refer to char position instead of byte position now. Same for cluster values reported by hb-shape. Will add an option for byte indices later.
792 lines
21 KiB
C++
792 lines
21 KiB
C++
/*
|
|
* Copyright © 2011 Google, Inc.
|
|
*
|
|
* This is part of HarfBuzz, a text shaping library.
|
|
*
|
|
* Permission is hereby granted, without written agreement and without
|
|
* license or royalty fees, to use, copy, modify, and distribute this
|
|
* software and its documentation for any purpose, provided that the
|
|
* above copyright notice and the following two paragraphs appear in
|
|
* all copies of this software.
|
|
*
|
|
* 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 "options.hh"
|
|
|
|
#ifdef HAVE_FREETYPE
|
|
#include <hb-ft.h>
|
|
#endif
|
|
|
|
|
|
void
|
|
fail (hb_bool_t suggest_help, const char *format, ...)
|
|
{
|
|
const char *msg;
|
|
|
|
va_list vap;
|
|
va_start (vap, format);
|
|
msg = g_strdup_vprintf (format, vap);
|
|
const char *prgname = g_get_prgname ();
|
|
g_printerr ("%s: %s\n", prgname, msg);
|
|
if (suggest_help)
|
|
g_printerr ("Try `%s --help' for more information.\n", prgname);
|
|
|
|
exit (1);
|
|
}
|
|
|
|
|
|
hb_bool_t debug = FALSE;
|
|
|
|
static gchar *
|
|
shapers_to_string (void)
|
|
{
|
|
GString *shapers = g_string_new (NULL);
|
|
const char **shaper_list = hb_shape_list_shapers ();
|
|
|
|
for (; *shaper_list; shaper_list++) {
|
|
g_string_append (shapers, *shaper_list);
|
|
g_string_append_c (shapers, ',');
|
|
}
|
|
g_string_truncate (shapers, MAX (0, (gint)shapers->len - 1));
|
|
|
|
return g_string_free (shapers, FALSE);
|
|
}
|
|
|
|
static G_GNUC_NORETURN gboolean
|
|
show_version (const char *name G_GNUC_UNUSED,
|
|
const char *arg G_GNUC_UNUSED,
|
|
gpointer data G_GNUC_UNUSED,
|
|
GError **error G_GNUC_UNUSED)
|
|
{
|
|
g_printf ("%s (%s) %s\n", g_get_prgname (), PACKAGE_NAME, PACKAGE_VERSION);
|
|
|
|
char *shapers = shapers_to_string ();
|
|
g_printf ("Available shapers: %s\n", shapers);
|
|
g_free (shapers);
|
|
if (strcmp (HB_VERSION_STRING, hb_version_string ()))
|
|
g_printf ("Linked HarfBuzz library has a different version: %s\n", hb_version_string ());
|
|
|
|
exit(0);
|
|
}
|
|
|
|
|
|
void
|
|
option_parser_t::add_main_options (void)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"version", 0, G_OPTION_FLAG_NO_ARG,
|
|
G_OPTION_ARG_CALLBACK, (gpointer) &show_version, "Show version numbers", NULL},
|
|
{"debug", 0, 0, G_OPTION_ARG_NONE, &debug, "Free all resources before exit", NULL},
|
|
{NULL}
|
|
};
|
|
g_option_context_add_main_entries (context, entries, NULL);
|
|
}
|
|
|
|
static gboolean
|
|
pre_parse (GOptionContext *context G_GNUC_UNUSED,
|
|
GOptionGroup *group G_GNUC_UNUSED,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
option_group_t *option_group = (option_group_t *) data;
|
|
option_group->pre_parse (error);
|
|
return *error == NULL;
|
|
}
|
|
|
|
static gboolean
|
|
post_parse (GOptionContext *context G_GNUC_UNUSED,
|
|
GOptionGroup *group G_GNUC_UNUSED,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
option_group_t *option_group = static_cast<option_group_t *>(data);
|
|
option_group->post_parse (error);
|
|
return *error == NULL;
|
|
}
|
|
|
|
void
|
|
option_parser_t::add_group (GOptionEntry *entries,
|
|
const gchar *name,
|
|
const gchar *description,
|
|
const gchar *help_description,
|
|
option_group_t *option_group)
|
|
{
|
|
GOptionGroup *group = g_option_group_new (name, description, help_description,
|
|
static_cast<gpointer>(option_group), NULL);
|
|
g_option_group_add_entries (group, entries);
|
|
g_option_group_set_parse_hooks (group, pre_parse, post_parse);
|
|
g_option_context_add_group (context, group);
|
|
}
|
|
|
|
void
|
|
option_parser_t::parse (int *argc, char ***argv)
|
|
{
|
|
setlocale (LC_ALL, "");
|
|
|
|
GError *parse_error = NULL;
|
|
if (!g_option_context_parse (context, argc, argv, &parse_error))
|
|
{
|
|
if (parse_error != NULL) {
|
|
fail (TRUE, "%s", parse_error->message);
|
|
//g_error_free (parse_error);
|
|
} else
|
|
fail (TRUE, "Option parse error");
|
|
}
|
|
}
|
|
|
|
|
|
static gboolean
|
|
parse_margin (const char *name G_GNUC_UNUSED,
|
|
const char *arg,
|
|
gpointer data,
|
|
GError **error G_GNUC_UNUSED)
|
|
{
|
|
view_options_t *view_opts = (view_options_t *) data;
|
|
view_options_t::margin_t &m = view_opts->margin;
|
|
switch (sscanf (arg, "%lf %lf %lf %lf", &m.t, &m.r, &m.b, &m.l)) {
|
|
case 1: m.r = m.t;
|
|
case 2: m.b = m.t;
|
|
case 3: m.l = m.r;
|
|
case 4: return TRUE;
|
|
default:
|
|
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
|
|
"%s argument should be one to four space-separated numbers",
|
|
name);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
static gboolean
|
|
parse_shapers (const char *name G_GNUC_UNUSED,
|
|
const char *arg,
|
|
gpointer data,
|
|
GError **error G_GNUC_UNUSED)
|
|
{
|
|
shape_options_t *shape_opts = (shape_options_t *) data;
|
|
shape_opts->shapers = g_strsplit (arg, ",", 0);
|
|
return TRUE;
|
|
}
|
|
|
|
static G_GNUC_NORETURN gboolean
|
|
list_shapers (const char *name G_GNUC_UNUSED,
|
|
const char *arg G_GNUC_UNUSED,
|
|
gpointer data G_GNUC_UNUSED,
|
|
GError **error G_GNUC_UNUSED)
|
|
{
|
|
for (const char **shaper = hb_shape_list_shapers (); *shaper; shaper++)
|
|
g_printf ("%s\n", *shaper);
|
|
|
|
exit(0);
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
parse_space (char **pp)
|
|
{
|
|
char c;
|
|
#define ISSPACE(c) ((c)==' '||(c)=='\f'||(c)=='\n'||(c)=='\r'||(c)=='\t'||(c)=='\v')
|
|
while (c = **pp, ISSPACE (c))
|
|
(*pp)++;
|
|
#undef ISSPACE
|
|
}
|
|
|
|
static hb_bool_t
|
|
parse_char (char **pp, char c)
|
|
{
|
|
parse_space (pp);
|
|
|
|
if (**pp != c)
|
|
return FALSE;
|
|
|
|
(*pp)++;
|
|
return TRUE;
|
|
}
|
|
|
|
static hb_bool_t
|
|
parse_uint (char **pp, unsigned int *pv)
|
|
{
|
|
char *p = *pp;
|
|
unsigned int v;
|
|
|
|
v = strtol (p, pp, 0);
|
|
|
|
if (p == *pp)
|
|
return FALSE;
|
|
|
|
*pv = v;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static hb_bool_t
|
|
parse_feature_value_prefix (char **pp, hb_feature_t *feature)
|
|
{
|
|
if (parse_char (pp, '-'))
|
|
feature->value = 0;
|
|
else {
|
|
parse_char (pp, '+');
|
|
feature->value = 1;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static hb_bool_t
|
|
parse_feature_tag (char **pp, hb_feature_t *feature)
|
|
{
|
|
char *p = *pp, c;
|
|
|
|
parse_space (pp);
|
|
|
|
#define ISALNUM(c) (('a' <= (c) && (c) <= 'z') || ('A' <= (c) && (c) <= 'Z') || ('0' <= (c) && (c) <= '9'))
|
|
while (c = **pp, ISALNUM(c))
|
|
(*pp)++;
|
|
#undef ISALNUM
|
|
|
|
if (p == *pp)
|
|
return FALSE;
|
|
|
|
feature->tag = hb_tag_from_string (p, *pp - p);
|
|
return TRUE;
|
|
}
|
|
|
|
static hb_bool_t
|
|
parse_feature_indices (char **pp, hb_feature_t *feature)
|
|
{
|
|
parse_space (pp);
|
|
|
|
hb_bool_t has_start;
|
|
|
|
feature->start = 0;
|
|
feature->end = (unsigned int) -1;
|
|
|
|
if (!parse_char (pp, '['))
|
|
return TRUE;
|
|
|
|
has_start = parse_uint (pp, &feature->start);
|
|
|
|
if (parse_char (pp, ':')) {
|
|
parse_uint (pp, &feature->end);
|
|
} else {
|
|
if (has_start)
|
|
feature->end = feature->start + 1;
|
|
}
|
|
|
|
return parse_char (pp, ']');
|
|
}
|
|
|
|
static hb_bool_t
|
|
parse_feature_value_postfix (char **pp, hb_feature_t *feature)
|
|
{
|
|
return !parse_char (pp, '=') || parse_uint (pp, &feature->value);
|
|
}
|
|
|
|
|
|
static hb_bool_t
|
|
parse_one_feature (char **pp, hb_feature_t *feature)
|
|
{
|
|
return parse_feature_value_prefix (pp, feature) &&
|
|
parse_feature_tag (pp, feature) &&
|
|
parse_feature_indices (pp, feature) &&
|
|
parse_feature_value_postfix (pp, feature) &&
|
|
(parse_char (pp, ',') || **pp == '\0');
|
|
}
|
|
|
|
static void
|
|
skip_one_feature (char **pp)
|
|
{
|
|
char *e;
|
|
e = strchr (*pp, ',');
|
|
if (e)
|
|
*pp = e + 1;
|
|
else
|
|
*pp = *pp + strlen (*pp);
|
|
}
|
|
|
|
static gboolean
|
|
parse_features (const char *name G_GNUC_UNUSED,
|
|
const char *arg,
|
|
gpointer data,
|
|
GError **error G_GNUC_UNUSED)
|
|
{
|
|
shape_options_t *shape_opts = (shape_options_t *) data;
|
|
char *s = (char *) arg;
|
|
char *p;
|
|
|
|
shape_opts->num_features = 0;
|
|
shape_opts->features = NULL;
|
|
|
|
if (!*s)
|
|
return TRUE;
|
|
|
|
/* count the features first, so we can allocate memory */
|
|
p = s;
|
|
do {
|
|
shape_opts->num_features++;
|
|
p = strchr (p, ',');
|
|
if (p)
|
|
p++;
|
|
} while (p);
|
|
|
|
shape_opts->features = (hb_feature_t *) calloc (shape_opts->num_features, sizeof (*shape_opts->features));
|
|
|
|
/* now do the actual parsing */
|
|
p = s;
|
|
shape_opts->num_features = 0;
|
|
while (*p) {
|
|
if (parse_one_feature (&p, &shape_opts->features[shape_opts->num_features]))
|
|
shape_opts->num_features++;
|
|
else
|
|
skip_one_feature (&p);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
void
|
|
view_options_t::add_options (option_parser_t *parser)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"annotate", 0, 0, G_OPTION_ARG_NONE, &this->annotate, "Annotate output rendering", NULL},
|
|
{"background", 0, 0, G_OPTION_ARG_STRING, &this->back, "Set background color (default: "DEFAULT_BACK")", "red/#rrggbb/#rrggbbaa"},
|
|
{"foreground", 0, 0, G_OPTION_ARG_STRING, &this->fore, "Set foreground color (default: "DEFAULT_FORE")", "red/#rrggbb/#rrggbbaa"},
|
|
{"line-space", 0, 0, G_OPTION_ARG_DOUBLE, &this->line_space, "Set space between lines (default: 0)", "units"},
|
|
{"margin", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_margin, "Margin around output (default: "G_STRINGIFY(DEFAULT_MARGIN)")","one to four numbers"},
|
|
{"font-size", 0, 0, G_OPTION_ARG_DOUBLE, &this->font_size, "Font size (default: "G_STRINGIFY(DEFAULT_FONT_SIZE)")","size"},
|
|
{NULL}
|
|
};
|
|
parser->add_group (entries,
|
|
"view",
|
|
"View options:",
|
|
"Options controlling the output rendering",
|
|
this);
|
|
}
|
|
|
|
void
|
|
shape_options_t::add_options (option_parser_t *parser)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"list-shapers", 0, G_OPTION_FLAG_NO_ARG,
|
|
G_OPTION_ARG_CALLBACK, (gpointer) &list_shapers, "List available shapers and quit", NULL},
|
|
{"shapers", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_shapers, "Comma-separated list of shapers to try","list"},
|
|
{"direction", 0, 0, G_OPTION_ARG_STRING, &this->direction, "Set text direction (default: auto)", "ltr/rtl/ttb/btt"},
|
|
{"language", 0, 0, G_OPTION_ARG_STRING, &this->language, "Set text language (default: $LANG)", "langstr"},
|
|
{"script", 0, 0, G_OPTION_ARG_STRING, &this->script, "Set text script (default: auto)", "ISO-15924 tag"},
|
|
{NULL}
|
|
};
|
|
parser->add_group (entries,
|
|
"shape",
|
|
"Shape options:",
|
|
"Options controlling the shaping process",
|
|
this);
|
|
|
|
const gchar *features_help = "\n"
|
|
"\n"
|
|
" Comma-separated list of font features to apply to text\n"
|
|
"\n"
|
|
" Features can be enabled or disabled, either globally or limited to\n"
|
|
" specific character ranges. The range indices refer to the positions\n"
|
|
" between Unicode characters. The position before the first character\n"
|
|
" is 0, and the position after the first character is 1, and so on.\n"
|
|
"\n"
|
|
" The format is Python-esque. Here is how it all works:\n"
|
|
"\n"
|
|
" Syntax: Value: Start: End:\n"
|
|
"\n"
|
|
" Setting value:\n"
|
|
" \"kern\" 1 0 ∞ # Turn feature on\n"
|
|
" \"+kern\" 1 0 ∞ # Turn feature on\n"
|
|
" \"-kern\" 0 0 ∞ # Turn feature off\n"
|
|
" \"kern=0\" 0 0 ∞ # Turn feature off\n"
|
|
" \"kern=1\" 1 0 ∞ # Turn feature on\n"
|
|
" \"aalt=2\" 2 0 ∞ # Choose 2nd alternate\n"
|
|
"\n"
|
|
" Setting index:\n"
|
|
" \"kern[]\" 1 0 ∞ # Turn feature on\n"
|
|
" \"kern[:]\" 1 0 ∞ # Turn feature on\n"
|
|
" \"kern[5:]\" 1 5 ∞ # Turn feature on, partial\n"
|
|
" \"kern[:5]\" 1 0 5 # Turn feature on, partial\n"
|
|
" \"kern[3:5]\" 1 3 5 # Turn feature on, range\n"
|
|
" \"kern[3]\" 1 3 3+1 # Turn feature on, single char\n"
|
|
"\n"
|
|
" Mixing it all:\n"
|
|
"\n"
|
|
" \"kern[3:5]=0\" 1 3 5 # Turn feature off for range";
|
|
|
|
GOptionEntry entries2[] =
|
|
{
|
|
{"features", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_features, features_help, "list"},
|
|
{NULL}
|
|
};
|
|
parser->add_group (entries2,
|
|
"features",
|
|
"Features options:",
|
|
"Options controlling the OpenType font features applied",
|
|
this);
|
|
}
|
|
|
|
void
|
|
font_options_t::add_options (option_parser_t *parser)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"font-file", 0, 0, G_OPTION_ARG_STRING, &this->font_file, "Font file-name", "filename"},
|
|
{"face-index", 0, 0, G_OPTION_ARG_INT, &this->face_index, "Face index (default: 0)", "index"},
|
|
{NULL}
|
|
};
|
|
parser->add_group (entries,
|
|
"font",
|
|
"Font options:",
|
|
"Options controlling the font",
|
|
this);
|
|
}
|
|
|
|
void
|
|
text_options_t::add_options (option_parser_t *parser)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"text", 0, 0, G_OPTION_ARG_STRING, &this->text, "Set input text", "string"},
|
|
{"text-file", 0, 0, G_OPTION_ARG_STRING, &this->text_file, "Set input text file-name", "filename"},
|
|
{NULL}
|
|
};
|
|
parser->add_group (entries,
|
|
"text",
|
|
"Text options:",
|
|
"Options controlling the input text",
|
|
this);
|
|
}
|
|
|
|
void
|
|
output_options_t::add_options (option_parser_t *parser)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"output-file", 0, 0, G_OPTION_ARG_STRING, &this->output_file, "Set output file-name (default: stdout)","filename"},
|
|
{"output-format", 0, 0, G_OPTION_ARG_STRING, &this->output_format, "Set output format", "format"},
|
|
{NULL}
|
|
};
|
|
parser->add_group (entries,
|
|
"output",
|
|
"Output options:",
|
|
"Options controlling the output",
|
|
this);
|
|
}
|
|
|
|
|
|
|
|
hb_font_t *
|
|
font_options_t::get_font (void) const
|
|
{
|
|
if (font)
|
|
return font;
|
|
|
|
hb_blob_t *blob = NULL;
|
|
|
|
/* Create the blob */
|
|
{
|
|
char *font_data;
|
|
unsigned int len = 0;
|
|
hb_destroy_func_t destroy;
|
|
void *user_data;
|
|
hb_memory_mode_t mm;
|
|
|
|
/* This is a hell of a lot of code for just reading a file! */
|
|
if (!font_file)
|
|
fail (TRUE, "No font file set");
|
|
|
|
if (0 == strcmp (font_file, "-")) {
|
|
/* read it */
|
|
GString *gs = g_string_new (NULL);
|
|
char buf[BUFSIZ];
|
|
#ifdef HAVE__SETMODE
|
|
_setmode (fileno (stdin), _O_BINARY);
|
|
#endif
|
|
while (!feof (stdin)) {
|
|
size_t ret = fread (buf, 1, sizeof (buf), stdin);
|
|
if (ferror (stdin))
|
|
fail (FALSE, "Failed reading font from standard input: %s",
|
|
strerror (errno));
|
|
g_string_append_len (gs, buf, ret);
|
|
}
|
|
len = gs->len;
|
|
font_data = g_string_free (gs, FALSE);
|
|
user_data = font_data;
|
|
destroy = (hb_destroy_func_t) g_free;
|
|
mm = HB_MEMORY_MODE_WRITABLE;
|
|
} else {
|
|
GMappedFile *mf = g_mapped_file_new (font_file, FALSE, NULL);
|
|
if (mf) {
|
|
font_data = g_mapped_file_get_contents (mf);
|
|
len = g_mapped_file_get_length (mf);
|
|
if (len) {
|
|
destroy = (hb_destroy_func_t) g_mapped_file_unref;
|
|
user_data = (void *) mf;
|
|
mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
|
|
} else
|
|
g_mapped_file_unref (mf);
|
|
}
|
|
if (!len) {
|
|
/* GMappedFile is buggy, it doesn't fail if file isn't regular.
|
|
* Try reading.
|
|
* https://bugzilla.gnome.org/show_bug.cgi?id=659212 */
|
|
GError *error = NULL;
|
|
gsize l;
|
|
if (g_file_get_contents (font_file, &font_data, &l, &error)) {
|
|
len = l;
|
|
destroy = (hb_destroy_func_t) g_free;
|
|
user_data = (void *) font_data;
|
|
mm = HB_MEMORY_MODE_WRITABLE;
|
|
} else {
|
|
fail (FALSE, "%s", error->message);
|
|
//g_error_free (error);
|
|
}
|
|
}
|
|
}
|
|
|
|
blob = hb_blob_create (font_data, len, mm, user_data, destroy);
|
|
}
|
|
|
|
/* Create the face */
|
|
hb_face_t *face = hb_face_create (blob, face_index);
|
|
hb_blob_destroy (blob);
|
|
|
|
|
|
font = hb_font_create (face);
|
|
|
|
unsigned int upem = hb_face_get_upem (face);
|
|
hb_font_set_scale (font, upem, upem);
|
|
hb_face_destroy (face);
|
|
|
|
#ifdef HAVE_FREETYPE
|
|
hb_ft_font_set_funcs (font);
|
|
#endif
|
|
|
|
return font;
|
|
}
|
|
|
|
|
|
const char *
|
|
text_options_t::get_line (unsigned int *len)
|
|
{
|
|
if (text) {
|
|
if (text_len == (unsigned int) -1)
|
|
text_len = strlen (text);
|
|
|
|
if (!text_len) {
|
|
*len = 0;
|
|
return NULL;
|
|
}
|
|
|
|
const char *ret = text;
|
|
const char *p = (const char *) memchr (text, '\n', text_len);
|
|
unsigned int ret_len;
|
|
if (!p) {
|
|
ret_len = text_len;
|
|
text += ret_len;
|
|
text_len = 0;
|
|
} else {
|
|
ret_len = p - ret;
|
|
text += ret_len + 1;
|
|
text_len -= ret_len + 1;
|
|
}
|
|
|
|
*len = ret_len;
|
|
return ret;
|
|
}
|
|
|
|
if (!fp) {
|
|
if (!text_file)
|
|
fail (TRUE, "At least one of text or text-file must be set");
|
|
|
|
if (0 != strcmp (text_file, "-"))
|
|
fp = fopen (text_file, "r");
|
|
else
|
|
fp = stdin;
|
|
|
|
if (!fp)
|
|
fail (FALSE, "Failed opening text file `%s': %s",
|
|
text_file, strerror (errno));
|
|
|
|
gs = g_string_new (NULL);
|
|
}
|
|
|
|
g_string_set_size (gs, 0);
|
|
char buf[BUFSIZ];
|
|
while (fgets (buf, sizeof (buf), fp)) {
|
|
unsigned int bytes = strlen (buf);
|
|
if (bytes && buf[bytes - 1] == '\n') {
|
|
bytes--;
|
|
g_string_append_len (gs, buf, bytes);
|
|
break;
|
|
}
|
|
g_string_append_len (gs, buf, bytes);
|
|
}
|
|
if (ferror (fp))
|
|
fail (FALSE, "Failed reading text: %s",
|
|
strerror (errno));
|
|
*len = gs->len;
|
|
return !*len && feof (fp) ? NULL : gs->str;
|
|
}
|
|
|
|
|
|
FILE *
|
|
output_options_t::get_file_handle (void)
|
|
{
|
|
if (fp)
|
|
return fp;
|
|
|
|
if (output_file)
|
|
fp = fopen (output_file, "wb");
|
|
else {
|
|
#ifdef HAVE__SETMODE
|
|
_setmode (fileno (stdout), _O_BINARY);
|
|
#endif
|
|
fp = stdout;
|
|
}
|
|
if (!fp)
|
|
fail (FALSE, "Cannot open output file `%s': %s",
|
|
g_filename_display_name (output_file), strerror (errno));
|
|
|
|
return fp;
|
|
}
|
|
|
|
|
|
void
|
|
format_options_t::add_options (option_parser_t *parser)
|
|
{
|
|
GOptionEntry entries[] =
|
|
{
|
|
{"no-glyph-names", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_glyph_names, "Use glyph indices instead of names", NULL},
|
|
{"no-positions", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_positions, "Do not show glyph positions", NULL},
|
|
{"no-clusters", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_clusters, "Do not show cluster mapping", NULL},
|
|
{"show-text", 0, 0, G_OPTION_ARG_NONE, &this->show_text, "Show input text", NULL},
|
|
{"show-unicode", 0, 0, G_OPTION_ARG_NONE, &this->show_unicode, "Show input Unicode codepoints", NULL},
|
|
{"show-line-num", 0, 0, G_OPTION_ARG_NONE, &this->show_line_num, "Show line numbers", NULL},
|
|
{NULL}
|
|
};
|
|
parser->add_group (entries,
|
|
"format",
|
|
"Format options:",
|
|
"Options controlling the formatting of buffer contents",
|
|
this);
|
|
}
|
|
|
|
void
|
|
format_options_t::serialize_unicode (hb_buffer_t *buffer,
|
|
GString *gs)
|
|
{
|
|
unsigned int num_glyphs = hb_buffer_get_length (buffer);
|
|
hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, NULL);
|
|
|
|
g_string_append_c (gs, '<');
|
|
for (unsigned int i = 0; i < num_glyphs; i++)
|
|
{
|
|
if (i)
|
|
g_string_append_c (gs, ',');
|
|
g_string_append_printf (gs, "U+%04X", info->codepoint);
|
|
info++;
|
|
}
|
|
g_string_append_c (gs, '>');
|
|
}
|
|
|
|
void
|
|
format_options_t::serialize_glyphs (hb_buffer_t *buffer,
|
|
hb_font_t *font,
|
|
GString *gs)
|
|
{
|
|
FT_Face ft_face = show_glyph_names ? hb_ft_font_get_face (font) : NULL;
|
|
|
|
unsigned int num_glyphs = hb_buffer_get_length (buffer);
|
|
hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, NULL);
|
|
hb_glyph_position_t *pos = hb_buffer_get_glyph_positions (buffer, NULL);
|
|
|
|
g_string_append_c (gs, '[');
|
|
for (unsigned int i = 0; i < num_glyphs; i++)
|
|
{
|
|
if (i)
|
|
g_string_append_c (gs, '|');
|
|
|
|
char glyph_name[30];
|
|
if (show_glyph_names) {
|
|
if (!FT_Get_Glyph_Name (ft_face, info->codepoint, glyph_name, sizeof (glyph_name)))
|
|
g_string_append_printf (gs, "%s", glyph_name);
|
|
else
|
|
g_string_append_printf (gs, "gid%u", info->codepoint);
|
|
} else
|
|
g_string_append_printf (gs, "%u", info->codepoint);
|
|
|
|
if (show_clusters)
|
|
g_string_append_printf (gs, "=%u", info->cluster);
|
|
|
|
if (show_positions && (pos->x_offset || pos->y_offset)) {
|
|
g_string_append_c (gs, '@');
|
|
if (pos->x_offset) g_string_append_printf (gs, "%d", pos->x_offset);
|
|
if (pos->y_offset) g_string_append_printf (gs, ",%d", pos->y_offset);
|
|
}
|
|
if (show_positions && (pos->x_advance || pos->y_advance)) {
|
|
g_string_append_c (gs, '+');
|
|
if (pos->x_advance) g_string_append_printf (gs, "%d", pos->x_advance);
|
|
if (pos->y_advance) g_string_append_printf (gs, ",%d", pos->y_advance);
|
|
}
|
|
|
|
info++;
|
|
pos++;
|
|
}
|
|
g_string_append_c (gs, ']');
|
|
}
|
|
void
|
|
format_options_t::serialize_line_no (unsigned int line_no,
|
|
GString *gs)
|
|
{
|
|
if (show_line_num)
|
|
g_string_append_printf (gs, "%d: ", line_no);
|
|
}
|
|
void
|
|
format_options_t::serialize_line (hb_buffer_t *buffer,
|
|
unsigned int line_no,
|
|
const char *text,
|
|
unsigned int text_len,
|
|
hb_font_t *font,
|
|
GString *gs)
|
|
{
|
|
if (show_text) {
|
|
serialize_line_no (line_no, gs);
|
|
g_string_append_c (gs, '(');
|
|
g_string_append_len (gs, text, text_len);
|
|
g_string_append_c (gs, ')');
|
|
g_string_append_c (gs, '\n');
|
|
}
|
|
|
|
if (show_unicode) {
|
|
serialize_line_no (line_no, gs);
|
|
hb_buffer_reset (scratch);
|
|
hb_buffer_add_utf8 (scratch, text, text_len, 0, -1);
|
|
serialize_unicode (scratch, gs);
|
|
g_string_append_c (gs, '\n');
|
|
}
|
|
|
|
serialize_line_no (line_no, gs);
|
|
serialize_glyphs (buffer, font, gs);
|
|
g_string_append_c (gs, '\n');
|
|
}
|