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![Werner Koch](/assets/img/avatar_default.png)
We better do this once and for all instead of cluttering all future commits with diffs of trailing white spaces. In the majority of cases blank or single lines are affected and thus this change won't disturb a git blame too much. For future commits the pre-commit scripts checks that this won't happen again.
186 lines
6.0 KiB
Awk
186 lines
6.0 KiB
Awk
# mkstrtable.awk
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# Copyright (C) 2003, 2004 g10 Code GmbH
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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# As a special exception, g10 Code GmbH gives unlimited permission to
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# copy, distribute and modify the C source files that are the output
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# of mkstrtable.awk. You need not follow the terms of the GNU General
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# Public License when using or distributing such scripts, even though
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# portions of the text of mkstrtable.awk appear in them. The GNU
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# General Public License (GPL) does govern all other use of the material
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# that constitutes the mkstrtable.awk program.
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#
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# Certain portions of the mkstrtable.awk source text are designed to be
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# copied (in certain cases, depending on the input) into the output of
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# mkstrtable.awk. We call these the "data" portions. The rest of the
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# mkstrtable.awk source text consists of comments plus executable code
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# that decides which of the data portions to output in any given case.
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# We call these comments and executable code the "non-data" portions.
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# mkstrtable.h never copies any of the non-data portions into its output.
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#
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# This special exception to the GPL applies to versions of mkstrtable.awk
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# released by g10 Code GmbH. When you make and distribute a modified version
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# of mkstrtable.awk, you may extend this special exception to the GPL to
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# apply to your modified version as well, *unless* your modified version
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# has the potential to copy into its output some of the text that was the
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# non-data portion of the version that you started with. (In other words,
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# unless your change moves or copies text from the non-data portions to the
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# data portions.) If your modification has such potential, you must delete
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# any notice of this special exception to the GPL from your modified version.
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# This script outputs a source file that does define the following
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# symbols:
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#
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# static const char msgstr[];
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# A string containing all messages in the list.
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#
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# static const int msgidx[];
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# A list of index numbers, one for each message, that points to the
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# beginning of the string in msgstr.
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#
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# msgidxof (code);
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# A macro that maps code numbers to idx numbers. If a DEFAULT MESSAGE
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# is provided (see below), its index will be returned for unknown codes.
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# Otherwise -1 is returned for codes that do not appear in the list.
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# You can lookup the message with code CODE with:
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# msgstr + msgidx[msgidxof (code)].
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#
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# The input file has the following format:
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# CODE1 ... MESSAGE1 (code nr, <tab>, something, <tab>, msg)
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# CODE2 ... MESSAGE2 (code nr, <tab>, something, <tab>, msg)
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# ...
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# CODEn ... MESSAGEn (code nr, <tab>, something, <tab>, msg)
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# ... DEFAULT-MESSAGE (<tab>, something, <tab>, fall-back msg)
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#
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# Comments (starting with # and ending at the end of the line) are removed,
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# as is trailing whitespace. The last line is optional; if no DEFAULT
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# MESSAGE is given, msgidxof will return the number -1 for unknown
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# index numbers.
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#
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# The field to be used is specified with the variable "textidx" on
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# the command line. It defaults to 2.
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#
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# The variable nogettext can be set to 1 to suppress gettext markers.
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#
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# The variable prefix can be used to prepend a string to each message.
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#
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# The variable namespace can be used to prepend a string to each
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# variable and macro name.
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BEGIN {
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FS = "[\t]+";
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# cpos holds the current position in the message string.
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cpos = 0;
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# msg holds the number of messages.
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msg = 0;
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print "/* Output of mkstrtable.awk. DO NOT EDIT. */";
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print "";
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header = 1;
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if (textidx == 0)
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textidx = 2;
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# nogettext can be set to 1 to suppress gettext noop markers.
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}
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/^#/ { next; }
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header {
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if ($1 ~ /^[0123456789]+$/)
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{
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print "/* The purpose of this complex string table is to produce";
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print " optimal code with a minimum of relocations. */";
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print "";
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print "static const char " namespace "msgstr[] = ";
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header = 0;
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}
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else
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print;
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}
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!header {
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sub (/\#.+/, "");
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sub (/[ ]+$/, ""); # Strip trailing space and tab characters.
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if (/^$/)
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next;
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# Print the string msgstr line by line. We delay output by one line to be able
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# to treat the last line differently (see END).
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if (last_msgstr)
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{
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if (nogettext)
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print " \"" last_msgstr "\" \"\\0\"";
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else
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print " gettext_noop (\"" last_msgstr "\") \"\\0\"";
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}
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last_msgstr = prefix $textidx;
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# Remember the error code and msgidx of each error message.
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code[msg] = $1;
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pos[msg] = cpos;
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cpos += length (last_msgstr) + 1;
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msg++;
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if ($1 == "")
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{
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has_default = 1;
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exit;
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}
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}
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END {
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if (has_default)
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coded_msgs = msg - 1;
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else
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coded_msgs = msg;
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if (nogettext)
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print " \"" prefix last_msgstr "\";";
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else
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print " gettext_noop (\"" prefix last_msgstr "\");";
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print "";
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print "static const int " namespace "msgidx[] =";
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print " {";
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for (i = 0; i < coded_msgs; i++)
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print " " pos[i] ",";
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print " " pos[coded_msgs];
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print " };";
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print "";
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print "#define " namespace "msgidxof(code) (0 ? -1 \\";
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# Gather the ranges.
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skip = code[0];
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start = code[0];
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stop = code[0];
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for (i = 1; i < coded_msgs; i++)
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{
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if (code[i] == stop + 1)
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stop++;
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else
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{
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print " : ((code >= " start ") && (code <= " stop ")) ? (code - " \
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skip ") \\";
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skip += code[i] - stop - 1;
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start = code[i];
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stop = code[i];
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}
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}
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print " : ((code >= " start ") && (code <= " stop ")) ? (code - " \
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skip ") \\";
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if (has_default)
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print " : " stop + 1 " - " skip ")";
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else
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print " : -1)";
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}
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