From 61d7539eef9545170d6ae164fd04c72a1897184a Mon Sep 17 00:00:00 2001
From: Alejandro Colomar <alx@kernel.org>
Date: Sun, 5 Nov 2023 17:33:26 +0100
Subject: bin/grepc: srcfix (Use printf '%s\n' instead of echo)

Reported-by: terdon <https://linux.codidact.com/users/57088>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 bin/grepc | 42 +++++++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/bin/grepc b/bin/grepc
index 4f1001f..ef965a3 100755
--- a/bin/grepc
+++ b/bin/grepc
@@ -38,7 +38,7 @@ t_ut_td_su='no';
 
 grepc_err()
 {
-	>&2 echo "$(basename "$0"): error: $*";
+	>&2 printf '%s\n' "$(basename "$0"): error: $*";
 	exit 1;
 }
 
@@ -123,28 +123,28 @@ if [ "$t" = 'no' ]; then
 fi;
 
 
-grepc_e()		{ echo '(?s)^([\w[]+[\w\s]*)?\benum\b[ \t]*([\w \t[\]]|::)*\n*([ \t]*){[^}]*^[ \t]*'"$1"'\b\s*[=,].*?^\3}.*?;'; }
-grepc_fp()		{ echo '(?s)^[\w[](?:[\w\s\(,\)[\]*]|::)+[\w\s\)*\]]\s+\**\(?'"$1"'\)?\s*(\((?:[\w\s,[\]*]|::|(?1))*(?:\.\.\.)?\))(?:[\w\s\(,\)[\]]|::)*;'; }
-grepc_fd()		{ echo '(?s)^[\w[](?:[\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+\**\(?'"$1"'\)?\s*(\((?:[\w\s,[\]*]|::|(?1))*(?:\.\.\.)?\))[ \t]*\n([ \t]*){.*?^\2}'; }
+grepc_e()		{ printf '%s\n' '(?s)^([\w[]+[\w\s]*)?\benum\b[ \t]*([\w \t[\]]|::)*\n*([ \t]*){[^}]*^[ \t]*'"$1"'\b\s*[=,].*?^\3}.*?;'; }
+grepc_fp()		{ printf '%s\n' '(?s)^[\w[](?:[\w\s\(,\)[\]*]|::)+[\w\s\)*\]]\s+\**\(?'"$1"'\)?\s*(\((?:[\w\s,[\]*]|::|(?1))*(?:\.\.\.)?\))(?:[\w\s\(,\)[\]]|::)*;'; }
+grepc_fd()		{ printf '%s\n' '(?s)^[\w[](?:[\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+\**\(?'"$1"'\)?\s*(\((?:[\w\s,[\]*]|::|(?1))*(?:\.\.\.)?\))[ \t]*\n([ \t]*){.*?^\2}'; }
 grepc_fgd_libm()	{ grepc_fd "M_DECL_FUNC \(__$1\)"; }
 grepc_fgd_libio()	{ grepc_fd "_IO_$1"; }
 grepc_fgp_libio()	{ grepc_fp "_IO_$1"; }
 grepc_fgp()		{ grepc_fgp_libio "$1"; }
-grepc_flp()		{ echo '(?s)^asmlinkage\s+[\w\s]+\**sys_'"$1"'\s*\(.*?\)'; }
-grepc_fld()		{ echo '(?s)^(COMPAT_)?SYSCALL_DEFINE.\('"$1"'\b.*?^}'; }
-grepc_mf()		{ echo '(?s)^[ \t]*#\s*define\s[\s\\]*'"$1"'\(.*?[^\\]$'; }
-grepc_mo()		{ echo '(?s)^[ \t]*#\s*define\s[\s\\]*'"$1"'\b(?!\().*?(?<!\\)$'; }
-grepc_t_braced()	{ echo '(?s)^([\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+)?\b(struct|union|enum)\b([\w \t[\]]|::)+\b'"$1"'\b[ \t]*\n*([ \t]*){.*?^\5}.*?;'; }
-grepc_t_td_simple()	{ echo '(?s)^[ \t]*typedef\s+[^{};]+'"$1"';'; }
-grepc_t_td_braced()	{ echo '(?s)^[ \t]*typedef\s+(struct|union|enum)\b(?:(?!\W'"$1"'\W)([\w \t[\]]|::))*\n*([ \t]*){(?:(?!^\3?}).)*?^\3}\s*'"$1"'(\[[\w\(,\)]\])*;'; }
-grepc_t_td_func()	{ echo '(?s)^[ \t]*typedef\s+[^{};]+\(\**'"$1"'\)\s*\([^{};]+;'; }
-grepc_ue()		{ echo '(?s)^([\w[]+[\w\s]*)?\benum\b([\w \t[\]]|::)*\n*([ \t]*){[^}]*^\s*\w+[\w\s[\]=]*'"$1"'.*?^\3}.*?;'; }
-grepc_uf_def()		{ echo '(?s)^[\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+\**\w+\s*\(([\w\s\(,\)[\]*]|::)+?(\.\.\.)?\)[ \t]*\n*([ \t]*){(?:(?!^\4?}).)*'"$1"'.*?^\4}'; }
-grepc_uf_linux_def()	{ echo '(?s)^(COMPAT_)?SYSCALL_DEFINE.\(\w+\b(?:(?!^}).)*'"$1"'.?^}'; }
-grepc_um()		{ echo '(?s)^[ \t]*#\s*define\s[\s\\]*\w+\b(\([^\)]*\))?(?:(?![^\\]$).)*'"$1"'.*?[^\\]$'; }
-grepc_ut_su()		{ echo '(?s)^(?!^[ \t]*typedef\b)([\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+)?\b(struct|union)\b([\w \t[\]]|::)*\w+[ \t]*\n*([ \t]*){(?:(?!^\5?}).)*?'"$1"'.*?^\5}.*?;'; }
-grepc_ut_td_simple()	{ echo '(?s)^[ \t]*typedef\s+[^{};]*'"$1"'[^{};]+;'; }
-grepc_ut_td_su()	{ echo '(?s)^[ \t]*typedef\s+(struct|union)\b([\w \t[\]]|::)*\n*([ \t]*){(?:(?!^\3?}|^\s*typedef).)*'"$1"'(?:(?!^\3?}|^\s*typedef).)*^\3}\s*\w+;'; }
+grepc_flp()		{ printf '%s\n' '(?s)^asmlinkage\s+[\w\s]+\**sys_'"$1"'\s*\(.*?\)'; }
+grepc_fld()		{ printf '%s\n' '(?s)^(COMPAT_)?SYSCALL_DEFINE.\('"$1"'\b.*?^}'; }
+grepc_mf()		{ printf '%s\n' '(?s)^[ \t]*#\s*define\s[\s\\]*'"$1"'\(.*?[^\\]$'; }
+grepc_mo()		{ printf '%s\n' '(?s)^[ \t]*#\s*define\s[\s\\]*'"$1"'\b(?!\().*?(?<!\\)$'; }
+grepc_t_braced()	{ printf '%s\n' '(?s)^([\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+)?\b(struct|union|enum)\b([\w \t[\]]|::)+\b'"$1"'\b[ \t]*\n*([ \t]*){.*?^\5}.*?;'; }
+grepc_t_td_simple()	{ printf '%s\n' '(?s)^[ \t]*typedef\s+[^{};]+'"$1"';'; }
+grepc_t_td_braced()	{ printf '%s\n' '(?s)^[ \t]*typedef\s+(struct|union|enum)\b(?:(?!\W'"$1"'\W)([\w \t[\]]|::))*\n*([ \t]*){(?:(?!^\3?}).)*?^\3}\s*'"$1"'(\[[\w\(,\)]\])*;'; }
+grepc_t_td_func()	{ printf '%s\n' '(?s)^[ \t]*typedef\s+[^{};]+\(\**'"$1"'\)\s*\([^{};]+;'; }
+grepc_ue()		{ printf '%s\n' '(?s)^([\w[]+[\w\s]*)?\benum\b([\w \t[\]]|::)*\n*([ \t]*){[^}]*^\s*\w+[\w\s[\]=]*'"$1"'.*?^\3}.*?;'; }
+grepc_uf_def()		{ printf '%s\n' '(?s)^[\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+\**\w+\s*\(([\w\s\(,\)[\]*]|::)+?(\.\.\.)?\)[ \t]*\n*([ \t]*){(?:(?!^\4?}).)*'"$1"'.*?^\4}'; }
+grepc_uf_linux_def()	{ printf '%s\n' '(?s)^(COMPAT_)?SYSCALL_DEFINE.\(\w+\b(?:(?!^}).)*'"$1"'.?^}'; }
+grepc_um()		{ printf '%s\n' '(?s)^[ \t]*#\s*define\s[\s\\]*\w+\b(\([^\)]*\))?(?:(?![^\\]$).)*'"$1"'.*?[^\\]$'; }
+grepc_ut_su()		{ printf '%s\n' '(?s)^(?!^[ \t]*typedef\b)([\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+)?\b(struct|union)\b([\w \t[\]]|::)*\w+[ \t]*\n*([ \t]*){(?:(?!^\5?}).)*?'"$1"'.*?^\5}.*?;'; }
+grepc_ut_td_simple()	{ printf '%s\n' '(?s)^[ \t]*typedef\s+[^{};]*'"$1"'[^{};]+;'; }
+grepc_ut_td_su()	{ printf '%s\n' '(?s)^[ \t]*typedef\s+(struct|union)\b([\w \t[\]]|::)*\n*([ \t]*){(?:(?!^\3?}|^\s*typedef).)*'"$1"'(?:(?!^\3?}|^\s*typedef).)*^\3}\s*\w+;'; }
 
 
 patterns="$(mktemp -t grepc.patterns.XXXXXX)";
@@ -189,8 +189,8 @@ else
 	fi \
 	| xargs pcre2grep "${opts[@]}" -f "$patterns";
 fi \
-| sed -E -f <(test "$k" = 'no'  && echo 's/^[^: ]+:[0-9]+:/\n\n&\n/') \
-| perl -pe "$(test "$r" = 'yes' && echo 's/('"$identifier"')/\033[32m\1\033[0m/' || echo 's///')" \
+| sed -E -f <(test "$k" = 'no' && printf '%s\n' 's/^[^: ]+:[0-9]+:/\n\n&\n/') \
+| perl -pe "$(test "$r" = 'yes' && printf '%s\n' 's/('"$identifier"')/\033[32m\1\033[0m/' || printf '%s\n' 's///')" \
 | if [ -n "$l" ]; then
 	sort \
 	| uniq;
-- 
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