diff options
Diffstat (limited to 'bp.1.md')
| -rw-r--r-- | bp.1.md | 33 |
1 files changed, 18 insertions, 15 deletions
@@ -228,15 +228,15 @@ string, and it may contain references to captured values: **\@0** (the whole of named *foo* in *pat*), etc. For example, **\@word \_ \@rest=(\*word % \_) =\> \"\@rest \@1\"** -*pat1* **==** *pat2* -: Matches *pat1*, if and only if *pat2* also matches the text of -*pat1*\'s match. (e.g. **word == (\"foo\_\" \*.)** matches words that start -with **"foo\_"**) +*pat1* **~** *pat2* +: Matches when *pat1* matches and *pat2* can be found within the text of that +match. (e.g. **comment ~ {TODO}** matches comments that contain the word +**"TODO"**) -*pat1* **!=** *pat2* -: Matches *pat1*, if and only if *pat2* does not match the text of -*pat1*\'s match. (e.g. **word == (\"foo\_\" \*.)** matches words that do -not start with **"foo\_"**) +*pat1* **!~** *pat2* +: Matches when *pat1* matches, but *pat2* can not be found within the text of +that match. (e.g. **comment ~ {IGNORE}** matches only comments that do not +contain the word **"IGNORE"**) *name***:** *pat* : Define *name* to mean *pat* (pattern definition) @@ -262,10 +262,10 @@ which may be loaded on demand. These grammar files are not comprehensive syntax definitions, but only some common patterns. For example, the c++ grammar file contains definitions for **//**-style line comments as well as **/\*...\*/**-style block comments. Thus, you can find all comments with the -string "TODO" with the following command: +word "TODO" with the following command: ``` -bp -g c++ -p 'comment==(..%\n "TODO" ..%\n$$)' *.cpp +bp -g c++ -p 'comment~{TODO}' *.cpp ``` @@ -278,9 +278,12 @@ bp -g c++ -p 'comment==(..%\n "TODO" ..%\n$$)' *.cpp : Find files ending with \".c\" and replace the extension with \".h\" **bp -p \'{foobar} parens\' my_file.py** -: Find the literal string **\"foobar\"**, assuming it\'s a complete word, -followed by a pair of matching parentheses in the file *my_file.py* +: Find the word **\"foobar\"**, followed by a pair of matching parentheses in +the file *my_file.py* -**bp -g html -p 'html-element==(\"\<a \"..%\\n\$\$)' foo.html** -: Using the *html* grammar, find all *html-element*s matching the tag *a* in -the file *foo.html* +**bp -g html -p \'element ~ (^^\"\<a \")\' foo.html** +: Using the *html* grammar, find all *element*s matching the tag *a* in the +file *foo.html* + +**bp -g python -p \'comment~{TODO}\' \*.py** +: Find all comments with the word **"TODO"** in local python files. |