Crate libaki_gsub 

the substitude text program.

Features

• the substitude text command, replace via regex.
• minimum support rustc 1.68.0 (2c8cc3432 2023-03-06)

Command help

aki-gsub --help

Usage:
  aki-gsub [options]

substitude text command, replace via regex.

Options:
      --color <when>    use markers to highlight the matching strings
  -e, --exp <exp>       regular expression
  -f, --format <fmt>    replace format
  -n, --quiet           no output unmach lines

  -H, --help        display this help and exit
  -V, --version     display version information and exit

Option Parameters:
  <when>    'always', 'never', or 'auto'
  <exp>     regular expression can has capture groups
  <fmt>     format can has capture group: ${0}, ${1}, ${2}, ...

Environments:
  AKI_GSUB_COLOR_SEQ_ST     color start sequence specified by ansi
  AKI_GSUB_COLOR_SEQ_ED     color end sequence specified by ansi

Examples:
  Leaving one character between 'a' and 'c', converts 'a' and 'c'
  on both sides to '*':
    echo "abcabca" | aki-gsub -e "a(.)c" -f "*\${1}*"
  result output:
    *b**b*a

  Converts 'a' to '*' and 'c' to '@':
    echo "abcabca" | aki-gsub -e "a" -f "*" -e "c" -f "@"
  result output:
    *b@*b@*

Quick install

1. you can install this into cargo bin path:

cargo install aki-gsub

2. you can build debian package:

cargo deb

and install .deb into your local repository of debian package.

Examples

Example 1: simple replacements

Leaving one character between ‘a’ and ‘c’, converts ‘a’ and ‘c’ on both sides to ‘*’.

command line:

echo "abcabca" | aki-gsub -e "a(.)c" -f "*\${1}*"

result output:

*b**b*a

The \${1} mean 1st capture.

Example 2: extracting email address

This extracts the email address and prints the name and address in commas.

command line:

echo "From:Red bear<aki.akaguma@example.com>" | aki-gsub -e "From: ?(.*)<([\w\d_.-]+@[\w\d_-]+\.[\w\d._-]+)>" -f "\${1}, \${2}"

result output:

Red bear, aki.akaguma@example.com

The \${1} mean 1st capture. The \${2} mean 2nd capture.

Example 3: multiple format

You can specify multiple formats. See following.

command line:

echo "xxx yyy zzz" | aki-gsub -e "x(x)x" -f "a\${1}a" -e "y(y)y" -f "b\${1}b"

result output:

axa byb zzz

The \${1} mean 1st capture.

Library example

See fn execute() for this library examples.

Modules

conf

Functions

execute

execute gsub

execute_with_env

execute gsub with environments