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| author | Eelco Dolstra <e.dolstra@tudelft.nl> | 2006-09-01 12:04:06 +0000 |
|---|---|---|
| committer | Eelco Dolstra <e.dolstra@tudelft.nl> | 2006-09-01 12:04:06 +0000 |
| commit | de90fdf908f2504e1a89a5d4660552cbcc1a15d5 (patch) | |
| tree | 7f7670b5bc4a157eb5466f38e03c8fe2fc152e3b | |
| parent | c9586b6c3f32b22eec8791fd9b49c81ec3f5fcf6 (diff) | |
* Allow "$" in strings as long as they are not followed by "{". (Too
bad flex doesn't have lexical restrictions, the current solution
isn't quite right...)
| -rw-r--r-- | src/libexpr/lexer.l | 6 | ||||
| -rw-r--r-- | tests/lang/eval-okay-string.exp | 2 | ||||
| -rw-r--r-- | tests/lang/eval-okay-string.nix | 1 |
3 files changed, 7 insertions, 2 deletions
diff --git a/src/libexpr/lexer.l b/src/libexpr/lexer.l index 892543ec2..fb19e16b4 100644 --- a/src/libexpr/lexer.l +++ b/src/libexpr/lexer.l @@ -77,7 +77,11 @@ inherit { return INHERIT; } } \" { BEGIN(STRING); return '"'; } -<STRING>([^\$\"\\]|\\.)+ { +<STRING>([^\$\"\\]|\$[^\{\"]|\\.)+ { +/* !!! Not quite right: we want a follow restriction on "$", it + shouldn't be followed by a "{". Right now "$\"" will be consumed + as part of a string, rather than a "$" followed by the string + terminator. Disallow "$\"" for now. */ yylval->t = unescapeStr(yytext); /* !!! alloc */ return STR; } diff --git a/tests/lang/eval-okay-string.exp b/tests/lang/eval-okay-string.exp index dd0e5e248..335e3281e 100644 --- a/tests/lang/eval-okay-string.exp +++ b/tests/lang/eval-okay-string.exp @@ -1 +1 @@ -Str("foobar/a/b/c/d/foo/xyzzy/foo.txt/../foo/x/yescape: \"quote\" \n \\end\nof\nlinefoobarblaat") +Str("foobar/a/b/c/d/foo/xyzzy/foo.txt/../foo/x/yescape: \"quote\" \n \\end\nof\nlinefoobarblaatfoo$bar") diff --git a/tests/lang/eval-okay-string.nix b/tests/lang/eval-okay-string.nix index f2452e857..086ba4bf9 100644 --- a/tests/lang/eval-okay-string.nix +++ b/tests/lang/eval-okay-string.nix @@ -7,3 +7,4 @@ of line" + "foo${if true then "b${"a" + "r"}" else "xyzzy"}blaat" + + "foo$bar" |