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all-in-one: strip include guards from header files

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This commit is contained in:
Bert Belder 2017-09-09 20:52:58 +02:00
parent 8ae1c70dc7
commit 6e1e6fc83e
1 changed files with 33 additions and 3 deletions
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36
allinone/build.js
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@ -3,15 +3,15 @@ var path = require('path');
var fs = require('fs');
var included = {};
function lines(filename) {
function load(filename) {
if (/[\/\\]/.test(filename))
return fs.readFileSync(filename, 'utf8').split(/\r?\n/g);
return fs.readFileSync(filename, 'utf8');
var PATH = [ '.', 'include', 'src' ];
for (;;) {
var dir = PATH.shift();
try {
return fs.readFileSync(dir + '/' + filename, 'utf8').split(/\r?\n/g);
return fs.readFileSync(dir + '/' + filename, 'utf8');
} catch (e) {
if (PATH.length == 0)
throw e;
@ -19,6 +19,36 @@ function lines(filename) {
}
}
function strip_guards(filename, source) {
var lead_comments_re = /^(\s*\/\*((?!\*\/)[\s\S])*\*\/)*\s*/;
var trail_comments_re = /(\s*\/\*((?!\*\/)[\s\S])*\*\/)*\s*$/;
var lead_guards_re = /^#ifndef\s+(\w+)\s+#define\s+(\w+)\s+/;
var trail_guards_re = /#endif$/;
// Strip leading and trailing comments and whitespace.
source = source.replace(lead_comments_re, '');
source = source.replace(trail_comments_re, '');
// Find include guards.
var lead_guards = lead_guards_re.exec(source);
var trail_guards = trail_guards_re.exec(source);
// Remove include guards, if found.
if (lead_guards && trail_guards && lead_guards[1] == lead_guards[2]) {
console.error('Stripping include guards: ' + filename);
source = source.replace(lead_guards_re, '');
source = source.replace(trail_guards_re, '');
}
return source;
}
function lines(filename) {
var source = load(filename);
source = strip_guards(filename, source);
return source.split(/\r?\n/g);
}
function comment(s) {
return ''; //'/* ' + s + '*/'
}