diff options
| -rw-r--r-- | deps.mk | 1 | ||||
| -rwxr-xr-x | src/shesc | 85 |
2 files changed, 86 insertions, 0 deletions
@@ -9,6 +9,7 @@ sources.sh = \ src/now \ src/pre \ src/round \ + src/shesc \ src/statusconv \ src/statusf \ src/tempname \ diff --git a/src/shesc b/src/shesc new file mode 100755 index 0000000..b7a4a1b --- /dev/null +++ b/src/shesc @@ -0,0 +1,85 @@ +#!/bin/sh +set -eu + + +usage() { + cat <<-'EOF' + Usage: + shesc [CONTENT...] + shesc -h + EOF +} + +help() { + cat <<-'EOF' + + + Options: + -h, --help show this message + + CONTENT a literal string to be escaped + + + Convert data to/from POSIX sh double quote string escaping. If + CONTENT is not given, get data from STDIN. + + + Examples: + + Escape sh control characters in a string: + + $ printf 'content="%s"\n' "$(shesc '"string" $(dollar "`cmd`") \ ')" + content="\"string\" \$(dollar \"\`cmd\`\") \\ " + + + Escape the content from a file: + + $ shesc < file.conf + EOF +} + + +for flag in "$@"; do + case "$flag" in + (--) + break + ;; + (--help) + usage + help + exit + ;; + (*) + ;; + esac +done + +while getopts 'h' flag; do + case "$flag" in + (h) + usage + help + exit + ;; + (*) + usage >&2 + exit 2 + ;; + esac +done +shift $((OPTIND - 1)) + + + +esc() { + sed 's|\([\\`"$]\)|\\\1|g' +} + + +if [ $# = 0 ]; then + esc +else + for s in "$@"; do + printf '%s\n' "$s" | esc + done +fi |