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diff --git a/doc/nimgrep_cmdline.txt b/doc/nimgrep_cmdline.txt new file mode 100644 index 000000000..6f6887bc4 --- /dev/null +++ b/doc/nimgrep_cmdline.txt @@ -0,0 +1,136 @@ + +Usage: + +* To search: + + nimgrep [options] PATTERN [(FILE/DIRECTORY)*/-] + +* To replace: + + nimgrep [options] PATTERN --replace REPLACEMENT (FILE/DIRECTORY)*/- + +* To list file names: + + nimgrep [options] --filenames [PATTERN] [(FILE/DIRECTORY)*] + +Positional arguments, from left to right: +1) PATTERN is either Regex (default) or Peg if `--peg` is specified. + PATTERN and REPLACEMENT should be skipped when `--stdin` is specified. +2) REPLACEMENT supports `$1`, `$#` notations for captured groups in PATTERN. + + .. DANGER:: `--replace` mode **DOES NOT** ask confirmation + unless `--confirm` is specified! + +3) Final arguments are a list of paths (FILE/DIRECTORY) or a standalone + minus `-` or not specified (empty): + + * empty, current directory `.` is assumed (not with `--replace`) + + .. Note:: so when no FILE/DIRECTORY/`-` is specified nimgrep + does **not** read the pipe, but searches files in the current + dir instead! + * `-`, read buffer once from stdin: pipe or terminal input; + in `--replace` mode the result is directed to stdout; + it's not compatible with `--stdin`, `--filenames`, or `--confirm` + + + For any given DIRECTORY nimgrep searches only its immediate files without + traversing subdirectories unless `--recursive` is specified. + +In replacement mode we require all 3 positional arguments to avoid damaging. + +Options: +* Mode of operation: + --find, -f find the PATTERN (default) + --replace, -! replace the PATTERN to REPLACEMENT, rewriting the files + --confirm confirm each occurrence/replacement; there is a chance + to abort any time without touching the file + --filenames just list filenames. Provide a PATTERN to find it in + the filenames (not in the contents of a file) or run + with empty pattern to just list all files: + + nimgrep --filenames # In current dir + nimgrep --filenames "" DIRECTORY + # Note empty pattern "", lists all files in DIRECTORY +* Interprete patterns: + --peg PATTERN and PAT are Peg + --re PATTERN and PAT are regular expressions (default) + --rex, -x use the "extended" syntax for the regular expression + so that whitespace is not significant + --word, -w matches should have word boundaries (buggy for pegs!) + --ignoreCase, -i be case-insensitive in PATTERN and PAT + --ignoreStyle, -y be style insensitive in PATTERN and PAT + .. Note:: PATTERN and patterns PAT (see below in other options) are all either + Regex or Peg simultaneously and options `--rex`, `--word`, `--ignoreCase`, + and `--ignoreStyle` are applied to all of them. + +* File system walk: + --recursive, -r process directories recursively + --follow follow all symlinks when processing recursively + --sortTime, -s[:asc|desc] + order files by the last modification time (default: off): + ascending (recent files go last) or descending + +* Filter files (based on filesystem paths): + + .. Hint:: Instead of `not` you can type just `n` for negative options below. + + --ex[tensions]:EX1|EX2|... + only search the files with the given extension(s), + empty one (`--ex`) means files with missing extension + --notex[tensions]:EX1|EX2|... + exclude files having given extension(s), use empty one to + skip files with no extension (like some binary files are) + --fi[lename]:PAT search only files whose name matches pattern PAT + --notfi[lename]:PAT skip files whose name matches pattern PAT + --di[rname]:PAT select files that in their path have a directory name + that matches pattern PAT + --notdi[rname]:PAT do not descend into directories whose name (not path) + matches pattern PAT + --dirp[ath]:PAT select only files whose whole relative directory path + matches pattern PAT + --notdirp[ath]:PAT skip files whose whole relative directory path + matches pattern PAT + +* Filter files (based on file contents): + --inF[ile]:PAT select files containing a (not displayed) match of PAT + --notinF[ile]:PAT skip files containing a match of PAT + --bin:on|off|only process binary files? (detected by \0 in first 1K bytes) + (default: on - binary and text files treated the same way) + --text, -t process only text files, the same as `--bin:off` + +* Filter matches: + --inC[ontext]:PAT select only matches containing a match of PAT in their + surrounding context (multiline with `-c`, `-a`, `-b`) + --notinC[ontext]:PAT + skip matches not containing a match of PAT + in their surrounding context + +* Represent results: + --nocolor output will be given without any colors + --color[:on] force color even if output is redirected (default: auto) + --colorTheme:THEME select color THEME from `simple` (default), + `bnw` (black and white), `ack`, or `gnu` (GNU grep) + --count only print counts of matches for files that matched + --context:N, -c:N print N lines of leading context before every match and + N lines of trailing context after it (default N: 0) + --afterContext:N, -a:N + print N lines of trailing context after every match + --beforeContext:N, -b:N + print N lines of leading context before every match + --group, -g group matches by file + --newLine, -l display every matching line starting from a new line + --cols[:N] limit max displayed columns/width of output lines from + files by N characters, cropping overflows (default: off) + --cols:auto, -% calculate columns from terminal width for every line + --onlyAscii, -@ display only printable ASCII Latin characters 0x20-0x7E + substitutions: 0 -> ^@, 1 -> ^A, ... 0x1F -> ^_, + 0x7F -> '7F, ..., 0xFF -> 'FF + +* Miscellaneous: + --threads:N, -j:N speed up search by N additional workers (default: 0, off) + --stdin read PATTERN from stdin (to avoid the shell's confusing + quoting rules) and, if `--replace` given, REPLACEMENT + --verbose be verbose: list every processed file + --help, -h shows this help + --version, -v shows the version |