#define OPTIONS_HH
#include "hb.hh"
-#include "hb-subset.h"
#include <stdlib.h>
#include <stddef.h>
#include <glib.h>
#include <glib/gprintf.h>
-void fail (hb_bool_t suggest_help, const char *format, ...) G_GNUC_NORETURN G_GNUC_PRINTF (2, 3);
-struct option_group_t
-{
- virtual ~option_group_t () {}
-
- virtual void add_options (struct option_parser_t *parser) = 0;
-
- virtual void pre_parse (GError **error G_GNUC_UNUSED) {}
- virtual void post_parse (GError **error G_GNUC_UNUSED) {}
-};
+static inline void fail (hb_bool_t suggest_help, const char *format, ...) G_GNUC_NORETURN G_GNUC_PRINTF (2, 3);
+static inline 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);
+ va_end (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);
+}
struct option_parser_t
{
- option_parser_t (const char *usage)
- {
- memset (this, 0, sizeof (*this));
- usage_str = usage;
- context = g_option_context_new (usage);
- to_free = g_ptr_array_new ();
-
- add_main_options ();
- }
+ option_parser_t (const char *parameter_string = nullptr)
+ : context (g_option_context_new (parameter_string)),
+ to_free (g_ptr_array_new ())
+ {}
static void _g_free_g_func (void *p, void * G_GNUC_UNUSED) { g_free (p); }
g_ptr_array_free (to_free, TRUE);
}
- void add_main_options ();
+ void add_options ();
+ static void
+ post_parse_ (void *thiz, GError **error) {}
+ template <typename Type>
+ static auto
+ post_parse_ (Type *thiz, GError **error) -> decltype (thiz->post_parse (error))
+ { thiz->post_parse (error); }
+ template <typename Type>
+ static gboolean
+ post_parse (GOptionContext *context G_GNUC_UNUSED,
+ GOptionGroup *group G_GNUC_UNUSED,
+ gpointer data,
+ GError **error)
+ {
+ option_parser_t::post_parse_ (static_cast<Type *> (data), error);
+ return !*error;
+ }
+
+ template <typename Type>
void add_group (GOptionEntry *entries,
const gchar *name,
const gchar *description,
const gchar *help_description,
- option_group_t *option_group);
-
- void free_later (char *p) {
- g_ptr_array_add (to_free, p);
- }
-
- void parse (int *argc, char ***argv);
-
- G_GNUC_NORETURN void usage () {
- g_printerr ("Usage: %s [OPTION...] %s\n", g_get_prgname (), usage_str);
- exit (1);
- }
-
- private:
- const char *usage_str;
- GOptionContext *context;
- GPtrArray *to_free;
-};
-
-
-#define DEFAULT_MARGIN 16
-#define DEFAULT_FORE "#000000"
-#define DEFAULT_BACK "#FFFFFF"
-#define FONT_SIZE_UPEM 0x7FFFFFFF
-#define FONT_SIZE_NONE 0
-
-struct view_options_t : option_group_t
-{
- view_options_t (option_parser_t *parser)
- {
- annotate = false;
- fore = nullptr;
- back = nullptr;
- line_space = 0;
- have_font_extents = false;
- font_extents.ascent = font_extents.descent = font_extents.line_gap = 0;
- margin.t = margin.r = margin.b = margin.l = DEFAULT_MARGIN;
-
- add_options (parser);
- }
- ~view_options_t () override
- {
- g_free (fore);
- g_free (back);
- }
-
- void add_options (option_parser_t *parser) override;
-
- hb_bool_t annotate;
- char *fore;
- char *back;
- double line_space;
- bool have_font_extents;
- struct font_extents_t {
- double ascent, descent, line_gap;
- } font_extents;
- struct margin_t {
- double t, r, b, l;
- } margin;
-};
-
-
-struct shape_options_t : option_group_t
-{
- shape_options_t (option_parser_t *parser)
+ Type *closure,
+ bool add_parse_hooks = true)
{
- direction = language = script = nullptr;
- bot = eot = preserve_default_ignorables = remove_default_ignorables = false;
- features = nullptr;
- num_features = 0;
- shapers = nullptr;
- utf8_clusters = false;
- invisible_glyph = 0;
- cluster_level = HB_BUFFER_CLUSTER_LEVEL_DEFAULT;
- normalize_glyphs = false;
- verify = false;
- num_iterations = 1;
-
- add_options (parser);
- }
- ~shape_options_t () override
- {
- g_free (direction);
- g_free (language);
- g_free (script);
- free (features);
- g_strfreev (shapers);
- }
-
- void add_options (option_parser_t *parser) override;
-
- void setup_buffer (hb_buffer_t *buffer)
- {
- hb_buffer_set_direction (buffer, hb_direction_from_string (direction, -1));
- hb_buffer_set_script (buffer, hb_script_from_string (script, -1));
- hb_buffer_set_language (buffer, hb_language_from_string (language, -1));
- hb_buffer_set_flags (buffer, (hb_buffer_flags_t)
- (HB_BUFFER_FLAG_DEFAULT |
- (bot ? HB_BUFFER_FLAG_BOT : 0) |
- (eot ? HB_BUFFER_FLAG_EOT : 0) |
- (preserve_default_ignorables ? HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES : 0) |
- (remove_default_ignorables ? HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES : 0) |
- 0));
- hb_buffer_set_invisible_glyph (buffer, invisible_glyph);
- hb_buffer_set_cluster_level (buffer, cluster_level);
- hb_buffer_guess_segment_properties (buffer);
- }
-
- static void copy_buffer_properties (hb_buffer_t *dst, hb_buffer_t *src)
- {
- hb_segment_properties_t props;
- hb_buffer_get_segment_properties (src, &props);
- hb_buffer_set_segment_properties (dst, &props);
- hb_buffer_set_flags (dst, hb_buffer_get_flags (src));
- hb_buffer_set_cluster_level (dst, hb_buffer_get_cluster_level (src));
+ GOptionGroup *group = g_option_group_new (name, description, help_description,
+ static_cast<gpointer>(closure), nullptr);
+ g_option_group_add_entries (group, entries);
+ if (add_parse_hooks)
+ g_option_group_set_parse_hooks (group, nullptr, post_parse<Type>);
+ g_option_context_add_group (context, group);
}
- void populate_buffer (hb_buffer_t *buffer, const char *text, int text_len,
- const char *text_before, const char *text_after)
+ template <typename Type>
+ void add_main_group (GOptionEntry *entries,
+ Type *closure)
{
- hb_buffer_clear_contents (buffer);
- if (text_before) {
- unsigned int len = strlen (text_before);
- hb_buffer_add_utf8 (buffer, text_before, len, len, 0);
- }
- hb_buffer_add_utf8 (buffer, text, text_len, 0, text_len);
- if (text_after) {
- hb_buffer_add_utf8 (buffer, text_after, -1, 0, 0);
- }
-
- if (!utf8_clusters) {
- /* Reset cluster values to refer to Unicode character index
- * instead of UTF-8 index. */
- unsigned int num_glyphs = hb_buffer_get_length (buffer);
- hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, nullptr);
- for (unsigned int i = 0; i < num_glyphs; i++)
- {
- info->cluster = i;
- info++;
- }
- }
-
- setup_buffer (buffer);
- }
-
- hb_bool_t shape (hb_font_t *font, hb_buffer_t *buffer, const char **error=nullptr)
- {
- hb_buffer_t *text_buffer = nullptr;
- if (verify)
- {
- text_buffer = hb_buffer_create ();
- hb_buffer_append (text_buffer, buffer, 0, -1);
- }
-
- if (!hb_shape_full (font, buffer, features, num_features, shapers))
- {
- if (error)
- *error = "all shapers failed.";
- goto fail;
- }
-
- if (normalize_glyphs)
- hb_buffer_normalize_glyphs (buffer);
-
- if (verify && !verify_buffer (buffer, text_buffer, font, error))
- goto fail;
-
- if (text_buffer)
- hb_buffer_destroy (text_buffer);
-
- return true;
-
- fail:
- if (text_buffer)
- hb_buffer_destroy (text_buffer);
-
- return false;
+ GOptionGroup *group = g_option_group_new (nullptr, nullptr, nullptr,
+ static_cast<gpointer>(closure), nullptr);
+ g_option_group_add_entries (group, entries);
+ /* https://gitlab.gnome.org/GNOME/glib/-/issues/2460 */
+ //g_option_group_set_parse_hooks (group, nullptr, post_parse<Type>);
+ g_option_context_set_main_group (context, group);
}
- bool verify_buffer (hb_buffer_t *buffer,
- hb_buffer_t *text_buffer,
- hb_font_t *font,
- const char **error=nullptr)
+ void set_summary (const char *summary)
{
- if (!verify_buffer_monotone (buffer, error))
- return false;
- if (!verify_buffer_safe_to_break (buffer, text_buffer, font, error))
- return false;
- return true;
+ g_option_context_set_summary (context, summary);
}
-
- bool verify_buffer_monotone (hb_buffer_t *buffer, const char **error=nullptr)
+ void set_description (const char *description)
{
- /* Check that clusters are monotone. */
- if (cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES ||
- cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS)
- {
- bool is_forward = HB_DIRECTION_IS_FORWARD (hb_buffer_get_direction (buffer));
-
- unsigned int num_glyphs;
- hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, &num_glyphs);
-
- for (unsigned int i = 1; i < num_glyphs; i++)
- if (info[i-1].cluster != info[i].cluster &&
- (info[i-1].cluster < info[i].cluster) != is_forward)
- {
- if (error)
- *error = "clusters are not monotone.";
- return false;
- }
- }
-
- return true;
+ g_option_context_set_description (context, description);
}
- bool verify_buffer_safe_to_break (hb_buffer_t *buffer,
- hb_buffer_t *text_buffer,
- hb_font_t *font,
- const char **error=nullptr)
- {
- if (cluster_level != HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES &&
- cluster_level != HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS)
- {
- /* Cannot perform this check without monotone clusters.
- * Then again, unsafe-to-break flag is much harder to use without
- * monotone clusters. */
- return true;
- }
-
- /* Check that breaking up shaping at safe-to-break is indeed safe. */
-
- hb_buffer_t *fragment = hb_buffer_create ();
- hb_buffer_t *reconstruction = hb_buffer_create ();
- copy_buffer_properties (reconstruction, buffer);
-
- unsigned int num_glyphs;
- hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, &num_glyphs);
-
- unsigned int num_chars;
- hb_glyph_info_t *text = hb_buffer_get_glyph_infos (text_buffer, &num_chars);
-
- /* Chop text and shape fragments. */
- bool forward = HB_DIRECTION_IS_FORWARD (hb_buffer_get_direction (buffer));
- unsigned int start = 0;
- unsigned int text_start = forward ? 0 : num_chars;
- unsigned int text_end = text_start;
- for (unsigned int end = 1; end < num_glyphs + 1; end++)
- {
- if (end < num_glyphs &&
- (info[end].cluster == info[end-1].cluster ||
- info[end-(forward?0:1)].mask & HB_GLYPH_FLAG_UNSAFE_TO_BREAK))
- continue;
-
- /* Shape segment corresponding to glyphs start..end. */
- if (end == num_glyphs)
- {
- if (forward)
- text_end = num_chars;
- else
- text_start = 0;
- }
- else
- {
- if (forward)
- {
- unsigned int cluster = info[end].cluster;
- while (text_end < num_chars && text[text_end].cluster < cluster)
- text_end++;
- }
- else
- {
- unsigned int cluster = info[end - 1].cluster;
- while (text_start && text[text_start - 1].cluster >= cluster)
- text_start--;
- }
- }
- assert (text_start < text_end);
-
- if (0)
- printf("start %d end %d text start %d end %d\n", start, end, text_start, text_end);
-
- hb_buffer_clear_contents (fragment);
- copy_buffer_properties (fragment, buffer);
-
- /* TODO: Add pre/post context text. */
- hb_buffer_flags_t flags = hb_buffer_get_flags (fragment);
- if (0 < text_start)
- flags = (hb_buffer_flags_t) (flags & ~HB_BUFFER_FLAG_BOT);
- if (text_end < num_chars)
- flags = (hb_buffer_flags_t) (flags & ~HB_BUFFER_FLAG_EOT);
- hb_buffer_set_flags (fragment, flags);
-
- hb_buffer_append (fragment, text_buffer, text_start, text_end);
- if (!hb_shape_full (font, fragment, features, num_features, shapers))
- {
- if (error)
- *error = "all shapers failed while shaping fragment.";
- hb_buffer_destroy (reconstruction);
- hb_buffer_destroy (fragment);
- return false;
- }
- hb_buffer_append (reconstruction, fragment, 0, -1);
-
- start = end;
- if (forward)
- text_start = text_end;
- else
- text_end = text_start;
- }
-
- bool ret = true;
- hb_buffer_diff_flags_t diff = hb_buffer_diff (reconstruction, buffer, (hb_codepoint_t) -1, 0);
- if (diff)
- {
- if (error)
- *error = "Safe-to-break test failed.";
- ret = false;
-
- /* Return the reconstructed result instead so it can be inspected. */
- hb_buffer_set_length (buffer, 0);
- hb_buffer_append (buffer, reconstruction, 0, -1);
- }
-
- hb_buffer_destroy (reconstruction);
- hb_buffer_destroy (fragment);
-
- return ret;
- }
-
- void shape_closure (const char *text, int text_len,
- hb_font_t *font, hb_buffer_t *buffer,
- hb_set_t *glyphs)
- {
- hb_buffer_reset (buffer);
- hb_buffer_add_utf8 (buffer, text, text_len, 0, text_len);
- setup_buffer (buffer);
- hb_ot_shape_glyphs_closure (font, buffer, features, num_features, glyphs);
+ void free_later (char *p) {
+ g_ptr_array_add (to_free, p);
}
- /* Buffer properties */
- char *direction;
- char *language;
- char *script;
-
- /* Buffer flags */
- hb_bool_t bot;
- hb_bool_t eot;
- hb_bool_t preserve_default_ignorables;
- hb_bool_t remove_default_ignorables;
-
- hb_feature_t *features;
- unsigned int num_features;
- char **shapers;
- hb_bool_t utf8_clusters;
- hb_codepoint_t invisible_glyph;
- hb_buffer_cluster_level_t cluster_level;
- hb_bool_t normalize_glyphs;
- hb_bool_t verify;
- unsigned int num_iterations;
-};
-
+ bool parse (int *argc, char ***argv, bool ignore_error = false);
-struct font_options_t : option_group_t
-{
- font_options_t (option_parser_t *parser,
- int default_font_size_,
- unsigned int subpixel_bits_)
- {
- variations = nullptr;
- num_variations = 0;
- default_font_size = default_font_size_;
- x_ppem = 0;
- y_ppem = 0;
- ptem = 0.;
- subpixel_bits = subpixel_bits_;
- font_file = nullptr;
- face_index = 0;
- font_size_x = font_size_y = default_font_size;
- font_funcs = nullptr;
- ft_load_flags = 2;
-
- blob = nullptr;
- font = nullptr;
-
- add_options (parser);
- }
- ~font_options_t () override
- {
- g_free (font_file);
- free (variations);
- g_free (font_funcs);
- hb_font_destroy (font);
- }
-
- void add_options (option_parser_t *parser) override;
-
- hb_font_t *get_font () const;
-
- char *font_file;
- mutable hb_blob_t *blob;
- int face_index;
- hb_variation_t *variations;
- unsigned int num_variations;
- int default_font_size;
- int x_ppem;
- int y_ppem;
- double ptem;
- unsigned int subpixel_bits;
- mutable double font_size_x;
- mutable double font_size_y;
- char *font_funcs;
- int ft_load_flags;
-
- private:
- mutable hb_font_t *font;
+ GOptionContext *context;
+ protected:
+ GPtrArray *to_free;
};
-struct text_options_t : option_group_t
+static inline gchar *
+shapers_to_string ()
{
- text_options_t (option_parser_t *parser)
- {
- text_before = nullptr;
- text_after = nullptr;
-
- text_len = -1;
- text = nullptr;
- text_file = nullptr;
-
- fp = nullptr;
- gs = nullptr;
- line = nullptr;
- line_len = UINT_MAX;
-
- add_options (parser);
- }
- ~text_options_t () override
- {
- g_free (text_before);
- g_free (text_after);
- g_free (text);
- g_free (text_file);
- if (gs)
- g_string_free (gs, true);
- if (fp && fp != stdin)
- fclose (fp);
- }
-
- void add_options (option_parser_t *parser) override;
+ GString *shapers = g_string_new (nullptr);
+ const char **shaper_list = hb_shape_list_shapers ();
- void post_parse (GError **error G_GNUC_UNUSED) override {
- if (text && text_file)
- g_set_error (error,
- G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
- "Only one of text and text-file can be set");
+ 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));
- const char *get_line (unsigned int *len);
-
- char *text_before;
- char *text_after;
-
- int text_len;
- char *text;
- char *text_file;
-
- private:
- FILE *fp;
- GString *gs;
- char *line;
- unsigned int line_len;
-};
+ return g_string_free (shapers, false);
+}
-struct output_options_t : option_group_t
+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)
{
- output_options_t (option_parser_t *parser,
- const char **supported_formats_ = nullptr)
- {
- output_file = nullptr;
- output_format = nullptr;
- supported_formats = supported_formats_;
- explicit_output_format = false;
-
- fp = nullptr;
-
- add_options (parser);
- }
- ~output_options_t () override
- {
- g_free (output_file);
- g_free (output_format);
- if (fp && fp != stdout)
- fclose (fp);
- }
-
- void add_options (option_parser_t *parser) override;
-
- void post_parse (GError **error G_GNUC_UNUSED) override
- {
- if (output_format)
- explicit_output_format = true;
-
- if (output_file && !output_format) {
- output_format = strrchr (output_file, '.');
- if (output_format)
- {
- output_format++; /* skip the dot */
- output_format = g_strdup (output_format);
- }
- }
-
- if (output_file && 0 == strcmp (output_file, "-"))
- output_file = nullptr; /* STDOUT */
- }
-
- FILE *get_file_handle ();
+ g_printf ("%s (%s) %s\n", g_get_prgname (), PACKAGE_NAME, PACKAGE_VERSION);
- char *output_file;
- char *output_format;
- const char **supported_formats;
- bool explicit_output_format;
+ 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 ());
- mutable FILE *fp;
-};
+ exit(0);
+}
-struct format_options_t : option_group_t
+inline void
+option_parser_t::add_options ()
{
- format_options_t (option_parser_t *parser) {
- show_glyph_names = true;
- show_positions = true;
- show_advances = true;
- show_clusters = true;
- show_text = false;
- show_unicode = false;
- show_line_num = false;
- show_extents = false;
- show_flags = false;
- trace = false;
-
- add_options (parser);
- }
-
- void add_options (option_parser_t *parser) override;
-
- void serialize_unicode (hb_buffer_t *buffer,
- GString *gs);
- void serialize_glyphs (hb_buffer_t *buffer,
- hb_font_t *font,
- hb_buffer_serialize_format_t format,
- hb_buffer_serialize_flags_t flags,
- GString *gs);
- void serialize_line_no (unsigned int line_no,
- GString *gs);
- void serialize_buffer_of_text (hb_buffer_t *buffer,
- unsigned int line_no,
- const char *text,
- unsigned int text_len,
- hb_font_t *font,
- GString *gs);
- void serialize_message (unsigned int line_no,
- const char *type,
- const char *msg,
- GString *gs);
- void serialize_buffer_of_glyphs (hb_buffer_t *buffer,
- unsigned int line_no,
- const char *text,
- unsigned int text_len,
- hb_font_t *font,
- hb_buffer_serialize_format_t output_format,
- hb_buffer_serialize_flags_t format_flags,
- GString *gs);
-
-
- hb_bool_t show_glyph_names;
- hb_bool_t show_positions;
- hb_bool_t show_advances;
- hb_bool_t show_clusters;
- hb_bool_t show_text;
- hb_bool_t show_unicode;
- hb_bool_t show_line_num;
- hb_bool_t show_extents;
- hb_bool_t show_flags;
- hb_bool_t trace;
-};
+ GOptionEntry entries[] =
+ {
+ {"version", 0, G_OPTION_FLAG_NO_ARG,
+ G_OPTION_ARG_CALLBACK, (gpointer) &show_version, "Show version numbers", nullptr},
+ {nullptr}
+ };
+ g_option_context_add_main_entries (context, entries, nullptr);
+}
-struct subset_options_t : option_group_t
+inline bool
+option_parser_t::parse (int *argc, char ***argv, bool ignore_error)
{
- subset_options_t (option_parser_t *parser)
- {
- input = hb_subset_input_create_or_fail ();
- add_options (parser);
- }
+ setlocale (LC_ALL, "");
- ~subset_options_t () override
+ GError *parse_error = nullptr;
+ if (!g_option_context_parse (context, argc, argv, &parse_error))
{
- hb_subset_input_destroy (input);
+ if (parse_error)
+ {
+ if (!ignore_error)
+ fail (true, "%s", parse_error->message);
+ g_error_free (parse_error);
+ }
+ else
+ {
+ if (!ignore_error)
+ fail (true, "Option parse error");
+ }
+ return false;
}
+ return true;
+}
- void add_options (option_parser_t *parser) override;
-
- hb_subset_input_t *input;
-};
/* fallback implementation for scalbn()/scalbnf() for pre-2013 MSVC */
#if defined (_MSC_VER) && (_MSC_VER < 1800)
projects / platform / upstream / harfbuzz.git / blobdiff