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Initial checkin of Pika from heckimp

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2023-09-25 15:35:21 -07:00
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1348
plug-ins/help-browser/dialog.c Normal file
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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* The PIKA Help Browser
* Copyright (C) 1999-2003 Sven Neumann <sven@gimp.org>
* Michael Natterer <mitch@gimp.org>
*
* dialog.h
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __DIALOG_H__
#define __DIALOG_H__
#include <gtk/gtk.h>
#define PIKA_TYPE_HELP_BROWSER_DIALOG (pika_help_browser_dialog_get_type ())
G_DECLARE_FINAL_TYPE (PikaHelpBrowserDialog, pika_help_browser_dialog,
PIKA, HELP_BROWSER_DIALOG,
GtkApplicationWindow)
PikaHelpBrowserDialog * pika_help_browser_dialog_new (const char *plug_in_binary,
GApplication *app);
void pika_help_browser_dialog_load (PikaHelpBrowserDialog *self,
const char *uri);
void pika_help_browser_dialog_make_index (PikaHelpBrowserDialog *self,
PikaHelpDomain *domain,
PikaHelpLocale *locale);
#endif /* ! __DIALOG_H__ */

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* The PIKA Help Browser
* Copyright (C) 1999-2008 Sven Neumann <sven@gimp.org>
* Michael Natterer <mitch@gimp.org>
* Henrik Brix Andersen <brix@gimp.org>
*
* Some code & ideas taken from the GNOME help browser.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h> /* strlen, strcmp */
#include <libpika/pika.h>
#include <libpika/pikaui.h>
#include "plug-ins/help/pikahelp.h"
#include "dialog.h"
#include "libpika/stdplugins-intl.h"
#define PIKA_HELP_BROWSER_EXT_PROC "extension-pika-help-browser"
#define PIKA_HELP_BROWSER_TEMP_EXT_PROC "extension-pika-help-browser-temp"
#define PLUG_IN_BINARY "help-browser"
#define PLUG_IN_ROLE "pika-help-browser"
#define PIKA_TYPE_HELP_BROWSER (pika_help_browser_get_type ())
G_DECLARE_FINAL_TYPE (PikaHelpBrowser, pika_help_browser,
PIKA, HELP_BROWSER,
PikaPlugIn)
static PikaValueArray * help_browser_run (PikaProcedure *procedure,
const PikaValueArray *args,
gpointer run_data);
static void temp_proc_install (PikaPlugIn *plug_in);
static PikaValueArray * temp_proc_run (PikaProcedure *procedure,
const PikaValueArray *args,
gpointer run_data);
static PikaHelpProgress * help_browser_progress_new (void);
struct _PikaHelpBrowser
{
PikaPlugIn parent_instance;
GtkApplication *app;
PikaHelpBrowserDialog *window;
};
G_DEFINE_TYPE (PikaHelpBrowser, pika_help_browser, PIKA_TYPE_PLUG_IN)
PIKA_MAIN (PIKA_TYPE_HELP_BROWSER)
DEFINE_STD_SET_I18N
static GList *
help_browser_query_procedures (PikaPlugIn *plug_in)
{
return g_list_append (NULL, g_strdup (PIKA_HELP_BROWSER_EXT_PROC));
}
static PikaProcedure *
help_browser_create_procedure (PikaPlugIn *plug_in,
const gchar *name)
{
PikaProcedure *procedure = NULL;
if (! strcmp (name, PIKA_HELP_BROWSER_EXT_PROC))
{
procedure = pika_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_EXTENSION,
help_browser_run, plug_in, NULL);
pika_procedure_set_documentation (procedure,
"Browse the PIKA user manual",
"A small and simple HTML browser "
"optimized for browsing the PIKA "
"user manual.",
PIKA_HELP_BROWSER_EXT_PROC);
pika_procedure_set_attribution (procedure,
"Sven Neumann <sven@gimp.org>, "
"Michael Natterer <mitch@gimp.org>"
"Henrik Brix Andersen <brix@gimp.org>",
"Sven Neumann, Michael Natterer & "
"Henrik Brix Andersen",
"1999-2008");
PIKA_PROC_ARG_ENUM (procedure, "run-mode",
"Run mode",
"The run mode",
PIKA_TYPE_RUN_MODE,
PIKA_RUN_INTERACTIVE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_STRV (procedure, "domain-names",
"Domain names",
"Domain names",
G_PARAM_READWRITE);
PIKA_PROC_ARG_STRV (procedure, "domain-uris",
"Domain URIs",
"Domain URIs",
G_PARAM_READWRITE);
}
return procedure;
}
static void
on_app_activate (GApplication *gapp,
gpointer user_data)
{
PikaHelpBrowser *browser = PIKA_HELP_BROWSER (user_data);
GtkApplication *app = GTK_APPLICATION (gapp);
browser->window = pika_help_browser_dialog_new (PLUG_IN_BINARY, gapp);
gtk_application_set_accels_for_action (app, "win.back", (const char*[]) { "<alt>Left", NULL });
gtk_application_set_accels_for_action (app, "win.forward", (const char*[]) { "<alt>Right", NULL });
gtk_application_set_accels_for_action (app, "win.reload", (const char*[]) { "<control>R", NULL });
gtk_application_set_accels_for_action (app, "win.stop", (const char*[]) { "Escape", NULL });
gtk_application_set_accels_for_action (app, "win.home", (const char*[]) { "<alt>Home", NULL });
gtk_application_set_accels_for_action (app, "win.copy-selection", (const char*[]) { "<control>C", NULL });
gtk_application_set_accels_for_action (app, "win.zoom-in", (const char*[]) { "<control>plus", NULL });
gtk_application_set_accels_for_action (app, "win.zoom-out", (const char*[]) { "<control>minus", NULL });
gtk_application_set_accels_for_action (app, "win.find", (const char*[]) { "<control>F", NULL });
gtk_application_set_accels_for_action (app, "win.find-again", (const char*[]) { "<control>G", NULL });
gtk_application_set_accels_for_action (app, "win.close", (const char*[]) { "<control>W", "<control>Q", NULL });
gtk_application_set_accels_for_action (app, "win.show-index", (const char*[]) { "<control>I", NULL });
}
static PikaValueArray *
help_browser_run (PikaProcedure *procedure,
const PikaValueArray *args,
gpointer user_data)
{
PikaHelpBrowser *browser = PIKA_HELP_BROWSER (user_data);
if (! pika_help_init (PIKA_VALUES_GET_STRV (args, 1),
PIKA_VALUES_GET_STRV (args, 2)))
{
return pika_procedure_new_return_values (procedure,
PIKA_PDB_CALLING_ERROR,
NULL);
}
temp_proc_install (pika_procedure_get_plug_in (procedure));
pika_procedure_extension_ready (procedure);
pika_plug_in_extension_enable (pika_procedure_get_plug_in (procedure));
#if GLIB_CHECK_VERSION(2,74,0)
browser->app = gtk_application_new (NULL, G_APPLICATION_DEFAULT_FLAGS);
#else
browser->app = gtk_application_new (NULL, G_APPLICATION_FLAGS_NONE);
#endif
g_signal_connect (browser->app, "activate", G_CALLBACK (on_app_activate), browser);
g_application_run (G_APPLICATION (browser->app), 0, NULL);
g_clear_object (&browser->app);
return pika_procedure_new_return_values (procedure, PIKA_PDB_SUCCESS, NULL);
}
static void
temp_proc_install (PikaPlugIn *plug_in)
{
PikaProcedure *procedure;
procedure = pika_procedure_new (plug_in, PIKA_HELP_BROWSER_TEMP_EXT_PROC,
PIKA_PDB_PROC_TYPE_TEMPORARY,
temp_proc_run, plug_in, NULL);
pika_procedure_set_documentation (procedure,
"DON'T USE THIS ONE",
"(Temporary procedure)",
NULL);
pika_procedure_set_attribution (procedure,
"Sven Neumann <sven@gimp.org>, "
"Michael Natterer <mitch@gimp.org>"
"Henrik Brix Andersen <brix@gimp.org>",
"Sven Neumann, Michael Natterer & "
"Henrik Brix Andersen",
"1999-2008");
PIKA_PROC_ARG_STRING (procedure, "help-domain",
"Help domain",
"Help domain to use",
NULL,
G_PARAM_READWRITE);
PIKA_PROC_ARG_STRING (procedure, "help-locales",
"Help locales",
"Language to use",
NULL,
G_PARAM_READWRITE);
PIKA_PROC_ARG_STRING (procedure, "help-id",
"Help ID",
"Help ID to open",
NULL,
G_PARAM_READWRITE);
pika_plug_in_add_temp_procedure (plug_in, procedure);
g_object_unref (procedure);
}
typedef struct _IdleClosure
{
PikaHelpBrowser *browser;
char *help_domain;
char *help_locales;
char *help_id;
} IdleClosure;
static void
idle_closure_free (gpointer data)
{
IdleClosure *closure = data;
g_free (closure->help_domain);
g_free (closure->help_locales);
g_free (closure->help_id);
g_free (closure);
}
static gboolean
show_help_on_idle (gpointer user_data)
{
IdleClosure *closure = user_data;
PikaHelpDomain *domain;
PikaHelpProgress *progress = NULL;
PikaHelpLocale *locale;
GList *locales;
char *uri;
gboolean fatal_error;
/* First get the URI to load */
domain = pika_help_lookup_domain (closure->help_domain);
if (!domain)
return G_SOURCE_REMOVE;
locales = pika_help_parse_locales (closure->help_locales);
if (! g_str_has_prefix (domain->help_uri, "file:"))
progress = help_browser_progress_new ();
uri = pika_help_domain_map (domain, locales, closure->help_id,
progress, &locale, &fatal_error);
if (progress)
pika_help_progress_free (progress);
g_list_free_full (locales, (GDestroyNotify) g_free);
/* Now actually load it */
if (uri)
{
pika_help_browser_dialog_make_index (closure->browser->window, domain, locale);
pika_help_browser_dialog_load (closure->browser->window, uri);
g_free (uri);
}
return G_SOURCE_REMOVE;
}
static PikaValueArray *
temp_proc_run (PikaProcedure *procedure,
const PikaValueArray *args,
gpointer user_data)
{
PikaHelpBrowser *browser = PIKA_HELP_BROWSER (user_data);
IdleClosure *closure;
const char *str;
closure = g_new0 (IdleClosure, 1);
closure->browser = browser;
str = PIKA_VALUES_GET_STRING (args, 0);
closure->help_domain = g_strdup ((str && *str)? str : PIKA_HELP_DEFAULT_DOMAIN);
str = PIKA_VALUES_GET_STRING (args, 1);
if (str && *str)
closure->help_locales = g_strdup (str);
str = PIKA_VALUES_GET_STRING (args, 2);
closure->help_id = g_strdup ((str && *str)? str : PIKA_HELP_DEFAULT_ID);
/* Do this on idle, to make sure everything is initialized already */
g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
show_help_on_idle,
closure, idle_closure_free);
return pika_procedure_new_return_values (procedure, PIKA_PDB_SUCCESS, NULL);
}
static void
help_browser_progress_start (const gchar *message,
gboolean cancelable,
gpointer user_data)
{
pika_progress_init (message);
}
static void
help_browser_progress_update (gdouble value,
gpointer user_data)
{
pika_progress_update (value);
}
static void
help_browser_progress_end (gpointer user_data)
{
pika_progress_end ();
}
static PikaHelpProgress *
help_browser_progress_new (void)
{
static const PikaHelpProgressVTable vtable =
{
help_browser_progress_start,
help_browser_progress_end,
help_browser_progress_update
};
return pika_help_progress_new (&vtable, NULL);
}
static void
pika_help_browser_class_init (PikaHelpBrowserClass *klass)
{
PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
plug_in_class->query_procedures = help_browser_query_procedures;
plug_in_class->create_procedure = help_browser_create_procedure;
plug_in_class->set_i18n = STD_SET_I18N;
}
static void
pika_help_browser_init (PikaHelpBrowser *help_browser)
{
}

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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<menu id="help_browser_popup_menu">
<section>
<item>
<attribute name="label" translatable="yes">_Back</attribute>
<attribute name="action">win.back</attribute>
</item>
<item>
<attribute name="label" translatable="yes">_Previous</attribute>
<attribute name="action">win.forward</attribute>
</item>
<item>
<attribute name="label" translatable="yes">_Reload</attribute>
<attribute name="action">win.reload</attribute>
</item>
<item>
<attribute name="label" translatable="yes">_Stop</attribute>
<attribute name="action">win.stop</attribute>
</item>
</section>
<section>
<item>
<attribute name="label" translatable="yes">_Home</attribute>
<attribute name="action">win.home</attribute>
</item>
<item>
<attribute name="label" translatable="yes">C_opy location</attribute>
<attribute name="action">win.copy-location</attribute>
</item>
<item>
<attribute name="label" translatable="yes">S_how index</attribute>
<attribute name="action">win.show-index</attribute>
</item>
</section>
<section>
<item>
<attribute name="label" translatable="yes">Find</attribute>
<attribute name="action">win.find</attribute>
</item>
<item>
<attribute name="label" translatable="yes">Find _Again</attribute>
<attribute name="action">win.find-again</attribute>
</item>
</section>
<section>
<item>
<attribute name="label" translatable="yes">Zoom in</attribute>
<attribute name="action">win.zoom-in</attribute>
</item>
<item>
<attribute name="label" translatable="yes">Zoom out</attribute>
<attribute name="action">win.zoom-out</attribute>
</item>
</section>
<section>
<item>
<attribute name="label" translatable="yes">Close</attribute>
<attribute name="action">win.close</attribute>
</item>
</section>
</menu>
<menu id="help_browser_copy_popup_menu">
<section>
<item>
<attribute name="label" translatable="yes">Copy selection</attribute>
<attribute name="action">win.copy-selection</attribute>
</item>
</section>
</menu>
</interface>

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<?xml version="1.0" encoding="UTF-8"?>
<gresources>
<gresource prefix="/technology.heckin/help/">
<file preprocess="xml-stripblanks">help-menu.ui</file>
</gresource>
</gresources>

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if get_option('webkit-unmaintained')
plugin_name = 'help-browser'
plugin_sources = [
'dialog.c',
'help-browser.c',
'uri.c',
]
plugin_sources += gnome.compile_resources(
'help-menus',
'help-menus.gresource.xml',
)
if platform_windows
plugin_sources += windows.compile_resources(
pika_plugins_rc,
args: [
'--define', 'ORIGINALFILENAME_STR="@0@"'.format(plugin_name+'.exe'),
'--define', 'INTERNALNAME_STR="@0@"' .format(plugin_name),
'--define', 'TOP_SRCDIR="@0@"' .format(meson.project_source_root()),
],
include_directories: [
rootInclude, appInclude,
],
)
endif
executable(plugin_name,
plugin_sources,
dependencies: [
libpikaui_dep,
gio,
webkit,
],
link_with: [
help_plugin_lib,
],
install: true,
install_dir: pikaplugindir / 'plug-ins' / plugin_name,
)
endif

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* The PIKA Help Browser - URI functions
* Copyright (C) 2001 Jacob Schroeder <jacob@convergence.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <glib.h>
#include "uri.h"
/* #define URI_DEBUG 1 */
typedef enum
{
URI_UNKNOWN,
URI_ABSURI,
URI_NETPATH,
URI_ABSPATH,
URI_RELPATH,
URI_QUERY,
URI_EMPTY,
URI_FRAGMENT,
URI_INVALID
} UriType;
static UriType
uri_get_type (const gchar *uri)
{
gchar c;
const gchar *cptr;
UriType type = URI_UNKNOWN;
if (!uri)
return type;
cptr = uri;
c = *cptr++;
if (g_ascii_isalpha (c))
{
type = URI_RELPATH; /* assume relative path */
while ((c = *cptr++))
{
if (g_ascii_isalnum (c) || c == '+' || c == '-' || c == '.')
continue;
if (c == ':')
{
/* it was a scheme */
type = URI_ABSURI;
}
break;
}
}
else
{
switch (c)
{
case '/':
if (*cptr == '/')
{
cptr++;
type = URI_NETPATH;
}
else
{
type = URI_ABSPATH;
}
break;
case '?':
type = URI_QUERY;
break;
case '#':
type = URI_FRAGMENT;
break;
case '\0':
type = URI_EMPTY;
break;
default:
type = URI_RELPATH;
break;
}
}
#ifdef URI_DEBUG
g_print ("uri_get_type (\"%s\") -> ", uri);
switch (type)
{
case URI_UNKNOWN: g_print ("unknown"); break;
case URI_ABSURI: g_print ("absuri"); break;
case URI_NETPATH: g_print ("netpath"); break;
case URI_ABSPATH: g_print ("abspath"); break;
case URI_RELPATH: g_print ("relpath"); break;
case URI_QUERY: g_print ("query"); break;
case URI_EMPTY: g_print ("empty"); break;
case URI_FRAGMENT: g_print ("fragment"); break;
case URI_INVALID: g_print ("invalid"); break;
}
g_print ("\n");
#endif
return type;
}
gchar *
uri_to_abs (const gchar *uri,
const gchar *base_uri)
{
gchar c;
const gchar *cptr;
gchar *retval = NULL;
UriType uri_type = URI_UNKNOWN;
UriType base_type = URI_UNKNOWN;
gint base_cnt = 0; /* no of chars to be copied from base URI */
gint uri_cnt = 0; /* no of chars to be copied from URI */
gint sep_cnt = 0; /* no of chars to be inserted between them */
const gchar *sep_str = ""; /* string to insert between base and uri */
const gchar *part;
const gchar *last_segment = NULL;
#ifdef URI_DEBUG
g_print ("uri_to_abs (\"%s\", \"%s\")\n", uri, base_uri);
#endif
/* this function does not use the algorithm that is being proposed
* in RFC 2396. Instead it analyses the first characters of each
* URI to determine its kind (abs, net, path, ...).
* After that it locates the missing parts in the base URI and then
* concats everything into a newly allocated string.
*/
/* determine the kind of the URIs */
uri_type = uri_get_type (uri);
if (uri_type != URI_ABSURI)
{
base_type = uri_get_type (base_uri);
if (base_type != URI_ABSURI)
return NULL; /* neither uri nor base uri are absolute */
}
/* find missing parts in base URI */
switch (uri_type)
{
case URI_ABSURI:
/* base uri not needed */
break;
case URI_QUERY:
/* ??? last segment? */
uri_type = URI_RELPATH;
case URI_NETPATH: /* base scheme */
case URI_ABSPATH: /* base scheme and authority */
case URI_RELPATH: /* base scheme, authority and path */
cptr = base_uri;
/* skip scheme */
while ((c = *cptr++) && c != ':')
; /* nada */
base_cnt = cptr - base_uri; /* incl : */
if (*cptr != '/')
{
/* completion not possible */
return NULL;
}
if (uri_type == URI_NETPATH)
break;
/* skip authority */
if (cptr[0] == '/' && cptr[1] == '/')
{
part = cptr;
cptr += 2;
while ((c = *cptr++) && c != '/' && c != '?' && c != '#')
; /* nada */
cptr--;
base_cnt += cptr - part;
}
if (uri_type == URI_ABSPATH)
break;
/* skip path */
if (*cptr != '/')
{
sep_cnt = 1;
sep_str = "/";
break;
}
part = cptr;
g_assert (*cptr == '/');
while ((c = *cptr++) && c != '?' && c != '#')
{
if (c == '/')
last_segment = cptr - 1;
};
g_assert (last_segment);
cptr = last_segment;
while ((c = *uri) && c == '.' && cptr > part)
{
gint shift_segment = 0;
c = uri[1];
if (c == '.' )
{
c = uri[2];
shift_segment = 1;
}
if (c == '/')
{
uri += 2;
}
else if (c == 0 || c == '?' || c == '#')
{
uri += 1;
}
else
{
break;
}
g_assert (*cptr == '/');
if (shift_segment)
{
uri += 1;
while (cptr > part && *--cptr != '/')
; /* nada */
}
}
base_cnt += cptr - part + 1;
break;
case URI_EMPTY:
case URI_FRAGMENT:
/* use whole base uri */
base_cnt = strlen (base_uri);
break;
case URI_UNKNOWN:
case URI_INVALID:
return NULL;
}
/* do not include fragment part from the URI reference */
for (cptr = uri; (c = *cptr) && c != '#'; cptr++)
; /* nada */
uri_cnt = cptr - uri;
/* allocate string and copy characters */
retval = g_new (gchar, base_cnt + sep_cnt + uri_cnt + 1);
if (base_cnt)
strncpy (retval, base_uri, base_cnt);
if (sep_cnt)
strncpy (retval + base_cnt, sep_str, sep_cnt);
if (uri_cnt)
strncpy (retval + base_cnt + sep_cnt, uri, uri_cnt);
retval[base_cnt + sep_cnt + uri_cnt] = '\0';
#ifdef URI_DEBUG
g_print (" -> \"%s\"\n", retval);
#endif
return retval;
}
#if 0
RFC 2396 URI Generic Syntax August 1998
A. Collected BNF for URI
URI-reference = [ absoluteURI | relativeURI ] [ "#" fragment ]
absoluteURI = scheme ":" ( hier_part | opaque_part )
relativeURI = ( net_path | abs_path | rel_path ) [ "?" query ]
hier_part = ( net_path | abs_path ) [ "?" query ]
opaque_part = uric_no_slash *uric
uric_no_slash = unreserved | escaped | ";" | "?" | ":" | "@" |
"&" | "=" | "+" | "$" | ","
net_path = "//" authority [ abs_path ]
abs_path = "/" path_segments
rel_path = rel_segment [ abs_path ]
rel_segment = 1*( unreserved | escaped |
";" | "@" | "&" | "=" | "+" | "$" | "," )
scheme = alpha *( alpha | digit | "+" | "-" | "." )
authority = server | reg_name
reg_name = 1*( unreserved | escaped | "$" | "," |
";" | ":" | "@" | "&" | "=" | "+" )
server = [ [ userinfo "@" ] hostport ]
userinfo = *( unreserved | escaped |
";" | ":" | "&" | "=" | "+" | "$" | "," )
hostport = host [ ":" port ]
host = hostname | IPv4address
hostname = *( domainlabel "." ) toplabel [ "." ]
domainlabel = alphanum | alphanum *( alphanum | "-" ) alphanum
toplabel = alpha | alpha *( alphanum | "-" ) alphanum
IPv4address = 1*digit "." 1*digit "." 1*digit "." 1*digit
port = *digit
path = [ abs_path | opaque_part ]
path_segments = segment *( "/" segment )
segment = *pchar *( ";" param )
param = *pchar
pchar = unreserved | escaped |
":" | "@" | "&" | "=" | "+" | "$" | ","
query = *uric
fragment = *uric
uric = reserved | unreserved | escaped
reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" |
"$" | ","
unreserved = alphanum | mark
mark = "-" | "_" | "." | "!" | "~" | "*" | "'" |
"(" | ")"
escaped = "%" hex hex
hex = digit | "A" | "B" | "C" | "D" | "E" | "F" |
"a" | "b" | "c" | "d" | "e" | "f"
alphanum = alpha | digit
alpha = lowalpha | upalpha
lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" |
"j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" |
"s" | "t" | "u" | "v" | "w" | "x" | "y" | "z"
upalpha = "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" |
"J" | "K" | "L" | "M" | "N" | "O" | "P" | "Q" | "R" |
"S" | "T" | "U" | "V" | "W" | "X" | "Y" | "Z"
digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" |
"8" | "9"
#endif

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plug-ins/help-browser/uri.h Normal file
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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* The PIKA Help Browser - URI functions
* Copyright (C) 2001 Jacob Schroeder <jacob@convergence.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
gchar * uri_to_abs (const gchar *uri,
const gchar *base_uri);