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cleanup

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This commit is contained in:
mhoffm
2021-06-23 00:37:31 +02:00
parent 91e946d55b
commit 9761b958e1
1 changed files with 24 additions and 25 deletions
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49
src/scanner.cc
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@@ -86,7 +86,30 @@ public:
return accept_and_advance(lexer, TEMPLATE_INTERPOLATION_END);
}
// handle template literal chunks
// manage heredoc context
if (valid_symbols[HEREDOC_IDENTIFIER] && !in_heredoc_context()) {
string identifier;
while (iswalnum(lexer->lookahead) || lexer->lookahead == '_' || lexer->lookahead == '-') {
identifier.push_back(lexer->lookahead);
advance(lexer);
}
context_stack.push_back({ .type = HEREDOC_TEMPLATE, .heredoc_identifier = identifier });
return accept_and_advance(lexer, HEREDOC_IDENTIFIER);
}
if (valid_symbols[HEREDOC_IDENTIFIER] && in_heredoc_context()) {
string expected_identifier = context_stack.back().heredoc_identifier;
for (string::iterator it = expected_identifier.begin(); it != expected_identifier.end(); ++it) {
if (lexer->lookahead == *it) {
advance(lexer);
} else {
return accept_and_advance(lexer, TEMPLATE_LITERAL_CHUNK);
}
}
context_stack.pop_back();
return accept_and_advance(lexer, HEREDOC_IDENTIFIER);
}
// manage template literal chunks
// handle template literal chunks in quoted contexts
//
@@ -140,30 +163,6 @@ public:
}
}
// handle heredoc context
if (valid_symbols[HEREDOC_IDENTIFIER] && !in_heredoc_context()) {
string identifier;
while (iswalnum(lexer->lookahead) || lexer->lookahead == '_' || lexer->lookahead == '-') {
identifier.push_back(lexer->lookahead);
advance(lexer);
}
context_stack.push_back({ .type = HEREDOC_TEMPLATE, .heredoc_identifier = identifier });
return accept_and_advance(lexer, HEREDOC_IDENTIFIER);
}
if (valid_symbols[HEREDOC_IDENTIFIER] && in_heredoc_context()) {
string expected_identifier = context_stack.back().heredoc_identifier;
for (string::iterator it = expected_identifier.begin(); it != expected_identifier.end(); ++it) {
if (lexer->lookahead == *it) {
advance(lexer);
} else {
return accept_and_advance(lexer, TEMPLATE_LITERAL_CHUNK);
}
}
context_stack.pop_back();
return accept_and_advance(lexer, HEREDOC_IDENTIFIER);
}
// handle all other quoted template or string literal characters
if (valid_symbols[TEMPLATE_LITERAL_CHUNK] && in_template_context()) {
return accept_and_advance(lexer, TEMPLATE_LITERAL_CHUNK);