diff options
| author | fche <fche> | 2007-08-08 03:36:25 +0000 |
|---|---|---|
| committer | fche <fche> | 2007-08-08 03:36:25 +0000 |
| commit | 3f99432cc11977a4345c881bed3aa60a1a614238 (patch) | |
| tree | 70dc99d601a65cec051658402531ba39fa2b2dad /stap.1.in | |
| parent | 98be953834c60aaa2ae7504890f1cf11815e558a (diff) | |
| download | systemtap-steved-3f99432cc11977a4345c881bed3aa60a1a614238.tar.gz systemtap-steved-3f99432cc11977a4345c881bed3aa60a1a614238.tar.xz systemtap-steved-3f99432cc11977a4345c881bed3aa60a1a614238.zip | |
2007-08-07 Frank Ch. Eigler <fche@redhat.com>
PR 4846
* parse.cxx (input_put): New function, sort of like stdio ungetc.
(input_get): Skip cursor position changing for input_put strings.
(scan): Rework $.../@... substitution into character pasting.
* parse.h: Corresponding changes.
* util.h (lex_cast_qstring): Octal-quote unprintable characters.
* stap.1.in, NEWS: Document new behaviour.
2007-08-07 Frank Ch. Eigler <fche@redhat.com>
PR 4846
* parseko/preprocess13.stp, parseok/nineteen.stp,
semok/twentyfive.stp: New tests.
Diffstat (limited to 'stap.1.in')
| -rw-r--r-- | stap.1.in | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -168,7 +168,7 @@ precedence. Whitespace is ignored. Three forms of comments are supported: .RS .br -.BR # " ... shell style, to the end of line" +.BR # " ... shell style, to the end of line, except for $# and @#" .br .BR // " ... C++ style, to the end of line" .br @@ -182,17 +182,17 @@ Integers are 64-bit signed quantities, although the parser also accepts (and wraps around) values above positive 2**63. .PP In addition, script arguments given at the end of the command line may -be expanded as literals. Use +be inserted. Use .B $1 ... $<NN> -for casting as a numeric literal and +for insertion unquoted, .B @1 ... @<NN> -for casting as string literal. The number of arguments may be accessed +for insertion as a string literal. The number of arguments may be accessed through .B $# -(as a numeric literal) or through +(as an unquoted number) or through .B @# -(as a string literal). These may be used in all contexts where literals -are accepted, including preprocessing stage. Reference to an argument +(as a quoted number). These may be used at any place a token may begin, +including within the preprocessing stage. Reference to an argument number beyond what was actually given is an error. .SS PREPROCESSING |