m/shell-scripting-templates
1
0
Fork 0
mirror of https://github.com/natelandau/shell-scripting-templates.git synced 2025-11-10 22:13:48 -05:00
Code Issues Packages Projects Releases Wiki Activity

Add new function and improve comments

Browse Source
This commit is contained in:
Nathaniel Landau
2021-11-05 20:38:47 -04:00
parent 962827608f
commit 5059f5f73b
10 changed files with 213 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

78
utilities/files.bash
View File

@@ -671,6 +671,84 @@ _parseYAML_() {
}' | sed 's/_=/+=/g' | sed 's/[[:space:]]*#.*"/"/g'
}
_printFileBetween_() (
# DESC:
# Prints text of a file between two regex patterns
# ARGS:
# $1 (Required): Starting regex pattern
# $2 (Required): Ending regex pattern
# $3 (Required): Input string
# OPTIONS:
# -i (Optional) - Case-insensitive regex
# -r (Optional) - Remove first and last lines (ie - the lines which matched the patterns)
# -g (Optional) - Greedy regex (Defaults to non-greedy)
# OUTS:
# 0: Success
# 1: Failure
# stdout: Prints text between two regex patterns
# USAGE:
# _printFileBetween_ "^pattern1$" "^pattern2$" "String or variable containing a string"
[[ $# -lt 3 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
local _removeLines=false
local _greedy=false
local _caseInsensitive=false
local opt
local OPTIND=1
while getopts ":iIrRgG" opt; do
case ${opt} in
i | I) _caseInsensitive=true ;;
r | R) _removeLines=true ;;
g | G) _greedy=true ;;
*) fatal "Unrecognized option '${1}' passed to ${FUNCNAME[0]}. Exiting." ;;
esac
done
shift $((OPTIND - 1))
local _startRegex="${1}"
local _endRegex="${2}"
local _input="${3}"
local _output
if [[ ${_removeLines} == true ]]; then
if [[ ${_greedy} == true ]]; then
if [[ ${_caseInsensitive} == true ]]; then
_output="$(sed -nE "/${_startRegex}/I,/${_endRegex}/Ip" "${_input}" | sed -n '2,$p' | sed '$d')"
else
_output="$(sed -nE "/${_startRegex}/,/${_endRegex}/p" "${_input}" | sed -n '2,$p' | sed '$d')"
fi
else
if [[ ${_caseInsensitive} == true ]]; then
_output="$(sed -nE "/${_startRegex}/I,/${_endRegex}/I{p;/${_endRegex}/Iq}" "${_input}" | sed -n '2,$p' | sed '$d')"
else
_output="$(sed -nE "/${_startRegex}/,/${_endRegex}/{p;/${_endRegex}/q}" "${_input}" | sed -n '2,$p' | sed '$d')"
fi
fi
else
if [[ ${_greedy} == true ]]; then
if [[ ${_caseInsensitive} == true ]]; then
_output="$(sed -nE "/${_startRegex}/I,/${_endRegex}/Ip" "${_input}")"
else
_output="$(sed -nE "/${_startRegex}/,/${_endRegex}/p" "${_input}")"
fi
else
if [[ ${_caseInsensitive} == true ]]; then
_output="$(sed -nE "/${_startRegex}/I,/${_endRegex}/I{p;/${_endRegex}/Iq}" "${_input}")"
else
_output="$(sed -nE "/${_startRegex}/,/${_endRegex}/{p;/${_endRegex}/q}" "${_input}")"
fi
fi
fi
if [[ -n ${_output:-} ]]; then
printf "%s\n" "${_output}"
return 0
else
return 1
fi
)
_readFile_() {
# DESC:
# Prints each line of a file