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authorEelco Dolstra <e.dolstra@tudelft.nl>2010-04-12 18:30:11 +0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2010-04-12 18:30:11 +0000
commit4d6ad5be1738c64b1de4274cafbd4b8f23ca287c (patch)
tree212ef4ad291875c8409d4b22c2ec07c9a1bbbacb /src/libexpr/lexer.l
parented711f73bce8786b1a37bd718eb97276d0916484 (diff)
* Don't use ATerms for the abstract syntax trees anymore. Not
finished yet.
Diffstat (limited to 'src/libexpr/lexer.l')
-rw-r--r--src/libexpr/lexer.l24
1 files changed, 12 insertions, 12 deletions
diff --git a/src/libexpr/lexer.l b/src/libexpr/lexer.l
index 82c350020..f750cfd02 100644
--- a/src/libexpr/lexer.l
+++ b/src/libexpr/lexer.l
@@ -8,9 +8,7 @@
%{
-#include "aterm.hh"
#include "nixexpr.hh"
-#include "nixexpr-ast.hh"
#define BISON_HEADER_HACK
#include "parser-tab.hh"
@@ -45,8 +43,9 @@ static void adjustLoc(YYLTYPE * loc, const char * s, size_t len)
}
-static Expr unescapeStr(const char * s)
+static Expr * unescapeStr(const char * s)
{
+#if 0
string t;
char c;
while ((c = *s++)) {
@@ -66,6 +65,7 @@ static Expr unescapeStr(const char * s)
else t += c;
}
return makeStr(toATerm(t), ATempty);
+#endif
}
@@ -105,7 +105,7 @@ inherit { return INHERIT; }
\/\/ { return UPDATE; }
\+\+ { return CONCAT; }
-{ID} { yylval->t = toATerm(yytext); return ID; /* !!! alloc */ }
+{ID} { yylval->id = strdup(yytext); return ID; }
{INT} { int n = atoi(yytext); /* !!! overflow */
yylval->n = n;
return INT;
@@ -117,7 +117,7 @@ inherit { return INHERIT; }
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 "$\"" for now. */
- yylval->t = unescapeStr(yytext); /* !!! alloc */
+ yylval->e = unescapeStr(yytext);
return STR;
}
<STRING>\$\{ { BEGIN(INITIAL); return DOLLAR_CURLY; }
@@ -126,31 +126,31 @@ inherit { return INHERIT; }
\'\'(\ *\n)? { BEGIN(IND_STRING); return IND_STRING_OPEN; }
<IND_STRING>([^\$\']|\$[^\{\']|\'[^\'\$])+ {
- yylval->t = makeIndStr(toATerm(yytext));
+ //yylval->t = makeIndStr(toATerm(yytext));
return IND_STR;
}
<IND_STRING>\'\'\$ {
- yylval->t = makeIndStr(toATerm("$"));
+ //yylval->t = makeIndStr(toATerm("$"));
return IND_STR;
}
<IND_STRING>\'\'\' {
- yylval->t = makeIndStr(toATerm("''"));
+ //yylval->t = makeIndStr(toATerm("''"));
return IND_STR;
}
<IND_STRING>\'\'\\. {
- yylval->t = unescapeStr(yytext + 2);
+ //yylval->t = unescapeStr(yytext + 2);
return IND_STR;
}
<IND_STRING>\$\{ { BEGIN(INITIAL); return DOLLAR_CURLY; }
<IND_STRING>\'\' { BEGIN(INITIAL); return IND_STRING_CLOSE; }
<IND_STRING>\' {
- yylval->t = makeIndStr(toATerm("'"));
+ //yylval->t = makeIndStr(toATerm("'"));
return IND_STR;
}
<IND_STRING>. return yytext[0]; /* just in case: shouldn't be reached */
-{PATH} { yylval->t = toATerm(yytext); return PATH; /* !!! alloc */ }
-{URI} { yylval->t = toATerm(yytext); return URI; /* !!! alloc */ }
+{PATH} { yylval->path = strdup(yytext); return PATH; }
+{URI} { yylval->uri = strdup(yytext); return URI; }
[ \t\r\n]+ /* eat up whitespace */
\#[^\r\n]* /* single-line comments */