--- /dev/null
+/* xgettext AppData schema file backend.
+ Copyright (C) 2002-2003, 2005-2009, 2013, 2015 Free Software
+ Foundation, Inc.
+
+ Written by Philip Withnall <philip.withnall@collabora.co.uk>, 2015.
+ Based on GSettings extractor by Daiki Ueno <ueno@gnu.org>, 2013.
+
+ 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 <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+/* Specification. */
+#include "x-appdata.h"
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "message.h"
+#include "xgettext.h"
+#include "error.h"
+#include "xerror.h"
+#include "xvasprintf.h"
+#include "basename.h"
+#include "progname.h"
+#include "xalloc.h"
+#include "hash.h"
+#include "po-charset.h"
+#include "gettext.h"
+#include "libexpat-compat.h"
+
+#define _(s) gettext(s)
+
+
+/* AppData is an XML format for describing application information.
+ The syntax is described here:
+ http://people.freedesktop.org/~hughsient/appdata/
+ Translation is described in the ITS file:
+ http://people.freedesktop.org/~hughsient/appdata/#translation */
+
+
+/* ====================== Keyword set customization. ====================== */
+
+/* If true extract all strings. */
+static bool extract_all = false;
+
+
+/* ============================= XML parsing. ============================= */
+
+#if DYNLOAD_LIBEXPAT || HAVE_LIBEXPAT
+
+/* Accumulator for the extracted messages. */
+static message_list_ty *mlp;
+
+/* Logical filename, used to label the extracted messages. */
+static char *logical_file_name;
+
+/* XML parser. */
+static XML_Parser parser;
+
+enum whitespace_type_ty
+{
+ none,
+ normalize,
+ strip
+};
+typedef enum whitespace_type_ty whitespace_type_ty;
+
+struct element_state
+{
+ bool is_component; /* the <component> element */
+ bool is_description; /* the <description> element */
+ bool extract_string;
+ whitespace_type_ty whitespace;
+ int lineno;
+ char *buffer;
+ size_t bufmax;
+ size_t buflen;
+};
+static struct element_state *stack;
+static size_t stack_size;
+
+static char *
+normalize_whitespace (const char *text, whitespace_type_ty whitespace)
+{
+ if (whitespace == none)
+ return xstrdup (text);
+ else
+ {
+ char *result, *p;
+
+ /* Strip whitespaces at the beginning/end of the text. */
+ result = xstrdup (text + strspn (text, " \t\n"));
+ for (p = result + strlen (result);
+ p > result && (*p == '\0' || *p == ' ' || *p == '\t' || *p == '\n');
+ p--)
+ ;
+ if (p > result)
+ *++p = '\0';
+
+ /* Normalize whitespaces within the text. */
+ if (whitespace == normalize)
+ {
+ char *end = result + strlen (result);
+ for (p = result; *p != '\0';)
+ {
+ size_t len = strspn (p, " \t\n");
+ if (len > 0)
+ {
+ *p = ' ';
+ memmove (p + 1, p + len, end - (p + len));
+ end -= len - 1;
+ *end = '\0';
+ p++;
+ }
+ p += strcspn (p, " \t\n");
+ }
+ }
+ return result;
+ }
+}
+
+/* Ensures stack_size >= size. */
+static void
+ensure_stack_size (size_t size)
+{
+ if (size > stack_size)
+ {
+ stack_size = 2 * stack_size;
+ if (stack_size < size)
+ stack_size = size;
+ stack =
+ (struct element_state *)
+ xrealloc (stack, stack_size * sizeof (struct element_state));
+ }
+}
+
+static size_t stack_depth;
+
+/* Callback called when <element> is seen. */
+static void
+start_element_handler (void *userData, const char *name,
+ const char **attributes)
+{
+ struct element_state *p;
+
+ /* Increase stack depth. */
+ stack_depth++;
+ ensure_stack_size (stack_depth + 1);
+
+ /* Don't extract a string for the containing element. */
+ stack[stack_depth - 1].extract_string = false;
+
+ p = &stack[stack_depth];
+ p->is_component = (strcmp (name, "component") == 0);
+ p->is_description = (strcmp (name, "description") == 0);
+ p->extract_string = extract_all;
+
+ if (!p->extract_string)
+ {
+ bool has_translatable = false;
+ whitespace_type_ty whitespace = none;
+ if ((stack_depth == 2
+ && stack[1].is_component
+ && (strcmp (name, "name") == 0
+ || strcmp (name, "summary") == 0))
+ || (stack_depth > 2
+ && stack[1].is_component
+ && stack[2].is_description))
+ {
+ has_translatable = true;
+ whitespace = normalize;
+ }
+
+ p->extract_string = has_translatable;
+ p->whitespace = whitespace;
+ }
+
+ p->lineno = XML_GetCurrentLineNumber (parser);
+ p->buffer = NULL;
+ p->bufmax = 0;
+ p->buflen = 0;
+ if (!p->extract_string)
+ savable_comment_reset ();
+}
+
+/* Callback called when </element> is seen. */
+static void
+end_element_handler (void *userData, const char *name)
+{
+ struct element_state *p = &stack[stack_depth];
+
+ /* Actually extract string. */
+ if (p->extract_string)
+ {
+ /* Don't extract the empty string. */
+ if (p->buflen > 0)
+ {
+ lex_pos_ty pos;
+
+ if (p->buflen == p->bufmax)
+ p->buffer = (char *) xrealloc (p->buffer, p->buflen + 1);
+ p->buffer[p->buflen] = '\0';
+
+ pos.file_name = logical_file_name;
+ pos.line_number = p->lineno;
+
+ if (p->buffer != NULL)
+ {
+ remember_a_message (mlp, NULL,
+ normalize_whitespace (p->buffer,
+ p->whitespace),
+ null_context, &pos,
+ NULL, savable_comment);
+ }
+ }
+ }
+
+ /* Free memory for this stack level. */
+ if (p->buffer != NULL)
+ free (p->buffer);
+
+ /* Decrease stack depth. */
+ stack_depth--;
+
+ savable_comment_reset ();
+}
+
+/* Callback called when some text is seen. */
+static void
+character_data_handler (void *userData, const char *s, int len)
+{
+ struct element_state *p = &stack[stack_depth];
+
+ /* Accumulate character data. */
+ if (len > 0)
+ {
+ if (p->buflen + len > p->bufmax)
+ {
+ p->bufmax = 2 * p->bufmax;
+ if (p->bufmax < p->buflen + len)
+ p->bufmax = p->buflen + len;
+ p->buffer = (char *) xrealloc (p->buffer, p->bufmax);
+ }
+ memcpy (p->buffer + p->buflen, s, len);
+ p->buflen += len;
+ }
+}
+
+/* Callback called when some comment text is seen. */
+static void
+comment_handler (void *userData, const char *data)
+{
+ /* Split multiline comment into lines, and remove leading and trailing
+ whitespace. */
+ char *copy = xstrdup (data);
+ char *p;
+ char *q;
+
+ for (p = copy; (q = strchr (p, '\n')) != NULL; p = q + 1)
+ {
+ while (p[0] == ' ' || p[0] == '\t')
+ p++;
+ while (q > p && (q[-1] == ' ' || q[-1] == '\t'))
+ q--;
+ *q = '\0';
+ savable_comment_add (p);
+ }
+ q = p + strlen (p);
+ while (p[0] == ' ' || p[0] == '\t')
+ p++;
+ while (q > p && (q[-1] == ' ' || q[-1] == '\t'))
+ q--;
+ *q = '\0';
+ savable_comment_add (p);
+ free (copy);
+}
+
+
+static void
+do_extract_appdata (FILE *fp,
+ const char *real_filename, const char *logical_filename,
+ msgdomain_list_ty *mdlp)
+{
+ mlp = mdlp->item[0]->messages;
+
+ /* expat feeds us strings in UTF-8 encoding. */
+ xgettext_current_source_encoding = po_charset_utf8;
+
+ logical_file_name = xstrdup (logical_filename);
+
+ parser = XML_ParserCreate (NULL);
+ if (parser == NULL)
+ error (EXIT_FAILURE, 0, _("memory exhausted"));
+
+ XML_SetElementHandler (parser, start_element_handler, end_element_handler);
+ XML_SetCharacterDataHandler (parser, character_data_handler);
+ XML_SetCommentHandler (parser, comment_handler);
+
+ stack_depth = 0;
+
+ while (!feof (fp))
+ {
+ char buf[4096];
+ int count = fread (buf, 1, sizeof buf, fp);
+
+ if (count == 0)
+ {
+ if (ferror (fp))
+ error (EXIT_FAILURE, errno, _("\
+error while reading \"%s\""), real_filename);
+ /* EOF reached. */
+ break;
+ }
+
+ if (XML_Parse (parser, buf, count, 0) == 0)
+ error (EXIT_FAILURE, 0, _("%s:%lu:%lu: %s"), logical_filename,
+ (unsigned long) XML_GetCurrentLineNumber (parser),
+ (unsigned long) XML_GetCurrentColumnNumber (parser) + 1,
+ XML_ErrorString (XML_GetErrorCode (parser)));
+ }
+
+ if (XML_Parse (parser, NULL, 0, 1) == 0)
+ error (EXIT_FAILURE, 0, _("%s:%lu:%lu: %s"), logical_filename,
+ (unsigned long) XML_GetCurrentLineNumber (parser),
+ (unsigned long) XML_GetCurrentColumnNumber (parser) + 1,
+ XML_ErrorString (XML_GetErrorCode (parser)));
+
+ XML_ParserFree (parser);
+
+ /* Close scanner. */
+ logical_file_name = NULL;
+ parser = NULL;
+}
+
+#endif
+
+void
+extract_appdata (FILE *fp,
+ const char *real_filename, const char *logical_filename,
+ flag_context_list_table_ty *flag_table,
+ msgdomain_list_ty *mdlp)
+{
+#if DYNLOAD_LIBEXPAT || HAVE_LIBEXPAT
+ if (LIBEXPAT_AVAILABLE ())
+ do_extract_appdata (fp, real_filename, logical_filename, mdlp);
+ else
+#endif
+ {
+ multiline_error (xstrdup (""),
+ xasprintf (_("\
+Language \"appdata\" is not supported. %s relies on expat.\n\
+This version was built without expat.\n"),
+ basename (program_name)));
+ exit (EXIT_FAILURE);
+ }
+}
--- /dev/null
+#!/bin/sh
+. "${srcdir=.}/init.sh"; path_prepend_ . ../src
+
+# Test of AppData support.
+
+cat <<EOF > xg-gs-1-empty.appdata.xml
+<?xml version="1.0"?>
+<component type="desktop"/>
+EOF
+
+: ${XGETTEXT=xgettext}
+${XGETTEXT} -o xg-gs-1.pot xg-gs-1-empty.appdata.xml 2>/dev/null
+test $? = 0 || {
+ echo "Skipping test: xgettext was built without AppData support"
+ exit 77
+}
+
+cat <<EOF > xg-gs-1.appdata.xml
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2013 First Lastname <your@email.com> -->
+<component type="desktop">
+ <id>gnome-power-statistics.desktop</id>
+ <metadata_license>CC0-1.0</metadata_license>
+ <project_license>GPL-2.0+ and GFDL-1.3</project_license>
+ <name>Power Statistics</name>
+ <summary>Observe power management</summary>
+ <description>
+ <p>
+ Power Statistics is a program used to view historical and current battery
+ information and will show programs running on your computer using power.
+ </p>
+ <p>Example list:</p>
+ <ul>
+ <li>First item</li>
+ <li>Second item</li>
+ </ul>
+ <p>
+ You probably only need to install this application if you are having problems
+ with your laptop battery, or are trying to work out what programs are using
+ significant amounts of power.
+ </p>
+ </description>
+ <screenshots>
+ <screenshot type="default">
+ <image>http://www.hughsie.com/en_US/main.png</image>
+ <caption>The main window showing the application in action</caption>
+ </screenshot>
+ <screenshot>
+ <image>http://www.hughsie.com/en_US/preferences.png</image>
+ <caption>The preferences window where you can change the defaults</caption>
+ </screenshot>
+ </screenshots>
+ <url type="homepage">http://www.gnome.org/projects/en_US/gnome-power-manager</url>
+ <updatecontact>gnome-power-manager-list@gnome.org</updatecontact>
+ <project_group>GNOME</project_group>
+</component>
+EOF
+
+: ${XGETTEXT=xgettext}
+${XGETTEXT} --add-comments -o - xg-gs-1.appdata.xml | grep -v 'POT-Creation-Date' > xg-gs-1.pot || exit 1
+
+cat <<EOF > xg-gs-1.ok
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: xg-gs-1.appdata.xml:7
+msgid "Power Statistics"
+msgstr ""
+
+#: xg-gs-1.appdata.xml:8
+msgid "Observe power management"
+msgstr ""
+
+#: xg-gs-1.appdata.xml:10
+msgid ""
+"Power Statistics is a program used to view historical and current battery "
+"information and will show programs running on your computer using power."
+msgstr ""
+
+#: xg-gs-1.appdata.xml:14
+msgid "Example list:"
+msgstr ""
+
+#: xg-gs-1.appdata.xml:16
+msgid "First item"
+msgstr ""
+
+#: xg-gs-1.appdata.xml:17
+msgid "Second item"
+msgstr ""
+
+#: xg-gs-1.appdata.xml:19
+msgid ""
+"You probably only need to install this application if you are having "
+"problems with your laptop battery, or are trying to work out what programs "
+"are using significant amounts of power."
+msgstr ""
+EOF
+
+: ${DIFF=diff}
+${DIFF} xg-gs-1.ok xg-gs-1.pot
+result=$?
+
+exit $result
projects / thirdparty / gettext.git / commitdiff
