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Merge pull request #5307 from Radvendii/master

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reset yylloc when yyless(0) is called
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Eelco Dolstra 2021-09-30 14:13:39 +02:00 committed by GitHub
commit 6a8d6246f6
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1 changed files with 6 additions and 0 deletions
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6
src/libexpr/lexer.l
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@ -28,6 +28,8 @@ using namespace nix;
namespace nix {
// backup to recover from yyless(0)
YYLTYPE prev_yylloc;
static void initLoc(YYLTYPE * loc)
{
@ -38,6 +40,8 @@ static void initLoc(YYLTYPE * loc)
static void adjustLoc(YYLTYPE * loc, const char * s, size_t len)
{
prev_yylloc = *loc;
loc->first_line = loc->last_line;
loc->first_column = loc->last_column;
@ -210,6 +214,7 @@ or { return OR_KW; }
{HPATH_START}\$\{ {
PUSH_STATE(PATH_START);
yyless(0);
*yylloc = prev_yylloc;
}
<PATH_START>{PATH_SEG} {
@ -265,6 +270,7 @@ or { return OR_KW; }
context (it may be ')', ';', or something of that sort) */
POP_STATE();
yyless(0);
*yylloc = prev_yylloc;
return PATH_END;
}