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llama.cpp
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common : add some defensive measures in constructed peg parser

This commit is contained in:
Alde Rojas 2025-12-15 23:20:36 -06:00
parent 7f5a7eeb81
commit 8b6bb3df27
1 changed files with 12 additions and 2 deletions
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14
common/chat-peg-parser.cpp
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@ -4,9 +4,14 @@
using json = nlohmann::json;
static std::string_view trim_trailing_space(std::string_view sv) {
static std::string_view trim_trailing_space(std::string_view sv, int max = -1) {
int count = 0;
while (!sv.empty() && std::isspace(static_cast<unsigned char>(sv.back()))) {
if (max != -1 && count <= max) {
break;
}
sv.remove_suffix(1);
count++;
}
return sv;
}
@ -93,7 +98,7 @@ void common_chat_peg_constructed_mapper::map(const common_peg_ast_node & node) {
if (is_arg_string && current_tool) {
// Serialize to JSON, but exclude the end quote
std::string dumped = json(node.text).dump();
std::string dumped = json(trim_trailing_space(node.text)).dump();
current_tool->arguments += dumped.substr(0, dumped.size() - 1);
needs_closing_quote = true;
}
@ -101,6 +106,7 @@ void common_chat_peg_constructed_mapper::map(const common_peg_ast_node & node) {
if (is_arg_close && current_tool) {
if (needs_closing_quote) {
current_tool->arguments += "\"";
needs_closing_quote = false;
}
}
@ -109,6 +115,10 @@ void common_chat_peg_constructed_mapper::map(const common_peg_ast_node & node) {
}
if (is_tool_close && current_tool) {
if (needs_closing_quote) {
current_tool->arguments += "\"";
needs_closing_quote = false;
}
current_tool->arguments += "}";
}
}