128 lines
3.2 KiB
C++
128 lines
3.2 KiB
C++
// generate autohdr.h based on the `EX` and `#if HDR` in *.cpp files
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#include <cstdio>
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <vector>
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#include <set>
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#include <cstdlib>
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using namespace std;
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int indent = 2;
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string ind() { string s; for(int i=0; i<indent; i++) s += ' '; return s; }
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string which_file;
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vector<string> if_stack;
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int ifs_level;
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void mark_file() {
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if(which_file != "") {
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cout << "\n" << ind() << "// implemented in: " << which_file << "\n\n";
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which_file = "";
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}
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while(ifs_level < (int) if_stack.size())
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cout << ind() << if_stack[ifs_level++] << "\n";
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}
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int in_hdr;
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set<string> seen;
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int lineid;
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void gen(string sf) {
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if(seen.count(sf)) return;
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seen.insert(sf);
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which_file = sf; lineid = 1;
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ifstream in(sf.c_str());
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string s;
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while(getline(in, s)) {
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lineid++;
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while(s != "" && s[0] == ' ') s = s.substr(1);
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while(s != "" && (s[s.size()-1] == 10 || s[s.size()-1] == 13)) s = s.substr(0, s.size() - 1);
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if(in_hdr) {
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if(s == "#endif")
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in_hdr--;
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if(s.substr(0, 3) == "#if")
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in_hdr++;
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if(in_hdr)
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cout << ind() << s << "\n";
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continue;
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}
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if(s == "#if HDR") {
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mark_file();
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cout << "#line " << lineid << " \"" << sf << "\"\n";
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in_hdr = true;
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continue;
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}
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if(s == "#if CU_INIT") {
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if_stack.push_back("#if 1");
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continue;
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}
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if(s.substr(0, 3) == "#if" || s.substr(0, 4) == "# if") {
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if_stack.push_back(s);
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}
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if(s.substr(0, 6) == "#endif") {
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if(if_stack.empty()) { cerr << "if_stack error " << which_file << ", " << s << "\n"; exit(1); }
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if_stack.pop_back();
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while(ifs_level > (int) if_stack.size())
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cout << ind() << "#endif\n", ifs_level--;
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}
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if(s.substr(0, 4) == "EX }") {
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mark_file();
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cout << ind() << "}\n";
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indent -= 2;
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}
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else if(s.substr(0, 3) == "EX ") {
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string t = s.substr(3);
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if(t.substr(0, 10) == "namespace ") {
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mark_file();
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cout << ind() << t << "\n";
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indent += 2;
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}
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else {
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mark_file();
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cout << "#line " << lineid-1 << " \"" << sf << "\"\n";
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for(int i=0;; i++) {
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if(i == int(t.size())) { cerr << "Error: unrecognizable EX: " << s << "\n"; }
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else if(t[i] == '{') {
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while(i && t[i-1] == ' ') i--;
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cout << ind() << t.substr(0, i) << ";\n";
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break;
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}
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else if(t[i] == ';') {
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cout << ind() << "extern " << t << "\n";
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break;
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}
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else if(t[i] == '=') {
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while(i && t[i-1] == ' ') i--;
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cout << ind() << "extern " << t.substr(0, i) << ";\n";
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break;
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}
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}
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}
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}
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}
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while(ifs_level > (int) if_stack.size())
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cout << ind() << "#endif\n", ifs_level--;
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while(indent > 2) {
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cout << ind() << "}\n";
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indent -= 2;
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}
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}
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int main(int argc, char ** argv) {
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printf("// This file is generated automatically by makeh.cpp.\n\nnamespace hr {\n");
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indent = 2;
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for(int i=1; i<argc; i++)
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gen(argv[i]);
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printf(" }\n");
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}
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