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xhpast.cpp
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Thu, Apr 25, 05:39

xhpast.cpp
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#include "ast.hpp"
#include <iostream>
#include <sstream>
#include <fstream>
using namespace std;
int xhpastparse(void*, xhpast::Node **);
int xhpast_process(std::string &in);
void print_node(xhpast::Node *node);
int main(int argc, char* argv[]) {
if (argc != 1) {
// Coupling: modify also src/parser/xhpast/bin/PhutilXHPASTBinary.php
cout << "7.1.2\n";
return 0;
}
ifstream inputFile;
istream *inputStream;
inputStream = &cin;
std::stringbuf sb;
*inputStream >> noskipws >> &sb;
std::string buffer = sb.str();
inputFile.close();
return xhpast_process(buffer);
}
int xhpast_process(std::string &in) {
char *buffer;
in.reserve(in.size() + 1);
buffer = const_cast<char*>(in.c_str());
buffer[in.size() + 1] = 0; // need double NULL for scan_buffer
void* scanner;
yy_extra_type extra;
extra.insert_token = 0;//flags.eval ? T_OPEN_TAG_FAKE : 0;
xhpast::Node *root = NULL;
xhpastlex_init(&scanner);
xhpastset_extra(&extra, scanner);
xhpast_scan_buffer(buffer, in.size() + 2, scanner);
xhpastparse(scanner, &root);
xhpastlex_destroy(scanner);
if (extra.terminated) {
fprintf(
stderr,
"XHPAST Parse Error: %s on line %d\n",
extra.error.c_str(),
(int)extra.lineno);
return 1;
}
printf("{");
printf("\"tree\":");
if (root) {
// Extend the right token for the root node to the end of the concrete
// token stream. This ensure all tokens appear in the tree. If we don't
// do this and the file ends in tokens which don't go to the parser (like
// comments and whitespace) they won't be represented in the tree.
root->r_tok = (extra.token_list.size() - 1);
print_node(root);
} else {
printf("null");
}
printf(",");
printf("\"stream\":");
printf("[");
if (!extra.token_list.empty()) {
for (xhpast::token_list_t::iterator ii = extra.token_list.begin();;) {
printf("[%d, %d]", (*ii)->type, (int)(*ii)->value.length());
if (++ii != extra.token_list.end()) {
printf(",");
} else {
break;
}
}
}
printf("]");
printf("}\n");
return 0;
}
void print_node(xhpast::Node *node) {
int l = -1;
if (node->l_tok != -1) {
l = node->l_tok;
}
if (l == -1) {
printf("[%u]", node->type);
} else {
int r = -1;
if (node->r_tok != -1) {
r = node->r_tok;
}
printf("[%u, %d, %d", node->type, l, r);
if (!node->children.empty()) {
printf(", [");
for (xhpast::node_list_t::iterator ii = node->children.begin();;) {
print_node(*ii);
if (++ii != node->children.end()) {
printf(",");
} else {
break;
}
}
printf("]");
}
printf("]");
}
}

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