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From: Corinna Vinschen <corinna@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin/main] Cygwin: fetch-lc-def-codesets-from-linux: speed up Date: Sat, 25 Feb 2023 19:16:13 +0000 (GMT) [thread overview] Message-ID: <20230225191613.64C01385AC39@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a31d4039d0bcf3a18c2fe2b26a810f1c399a8a9e commit a31d4039d0bcf3a18c2fe2b26a810f1c399a8a9e Author: Corinna Vinschen <corinna@vinschen.de> AuthorDate: Sat Feb 25 20:15:53 2023 +0100 Commit: Corinna Vinschen <corinna@vinschen.de> CommitDate: Sat Feb 25 20:15:53 2023 +0100 Cygwin: fetch-lc-def-codesets-from-linux: speed up Drop shell read loop in favor of performing the locale output evaluation inside a single awk invocation. Signed-off-by: Corinna Vinschen <corinna@vinschen.de> Diff: --- .../fetch-lc-def-codesets-from-linux | 46 ++++++---------------- 1 file changed, 12 insertions(+), 34 deletions(-) diff --git a/winsup/cygwin/linux-locale-helpers/fetch-lc-def-codesets-from-linux b/winsup/cygwin/linux-locale-helpers/fetch-lc-def-codesets-from-linux index c8c60ecac38d..1a8afede868a 100755 --- a/winsup/cygwin/linux-locale-helpers/fetch-lc-def-codesets-from-linux +++ b/winsup/cygwin/linux-locale-helpers/fetch-lc-def-codesets-from-linux @@ -10,39 +10,17 @@ } default_codeset[] = { EOF - while read line - do - locale=$(echo "${line}" | awk '/^locale:/{ print $2; }') - if [ -z "${locale}" ] - then - continue - fi - # No aliases - idx=$(expr index "${locale}" '_') - if [ "${idx}" -eq 0 ] - then - continue - fi - # No explicit codesets - idx=$(expr index "${locale}" '.') - if [ "${idx}" -ne 0 ] - then - continue - fi - while read line2 - do - codeset=$(echo "${line2}" | awk '/codeset/{ print $3; }') - if [ -n "${codeset}" ] - then - # Translate into internal codeset names. */ - case "${codeset}" in - BIG5*) codeset="BIG5";; - *) ;; - esac - printf " { \"%s\", \"%s\" },\n" "${locale}" "${codeset}" - break - fi - done - done <<<$(locale -av) + locale -av | \ + awk '/^locale:/{ + if ( index ($2, "_") == 0 ) next # No aliases + if ( index ($2, ".") > 0 ) next # No explicit codesets + locale=$2; + } + /codeset/ { + if ( length (locale) == 0 ) next + codeset = gensub (/BIG5.*/, "BIG5", 1, $3); + printf " { \"%s\", \"%s\" },\n", locale, codeset; + locale = ""; + }' echo "};" ) > lc_def_codesets.h
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