diff options
Diffstat (limited to 'buildroot/share/scripts/pinsformat.js')
| -rw-r--r-- | buildroot/share/scripts/pinsformat.js | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/buildroot/share/scripts/pinsformat.js b/buildroot/share/scripts/pinsformat.js new file mode 100644 index 0000000..a82c2f2 --- /dev/null +++ b/buildroot/share/scripts/pinsformat.js @@ -0,0 +1,170 @@ +#!/usr/bin/env node + +// +// Formatter script for pins_MYPINS.h files +// +// Usage: mffmt [infile] [outfile] +// +// With no parameters convert STDIN to STDOUT +// + +const fs = require("fs"); + +// String lpad / rpad +String.prototype.lpad = function(len, chr) { + if (!len) return this; + if (chr === undefined) chr = ' '; + var s = this+'', need = len - s.length; + if (need > 0) s = new Array(need+1).join(chr) + s; + return s; +}; + +String.prototype.rpad = function(len, chr) { + if (!len) return this; + if (chr === undefined) chr = ' '; + var s = this+'', need = len - s.length; + if (need > 0) s += new Array(need+1).join(chr); + return s; +}; + +const mpatt = [ '-?\\d+', 'P[A-I]\\d+', 'P\\d_\\d+' ], + definePatt = new RegExp(`^\\s*(//)?#define\\s+[A-Z_][A-Z0-9_]+\\s+(${mpatt[0]}|${mpatt[1]}|${mpatt[2]})\\s*(//.*)?$`, 'gm'), + ppad = [ 3, 4, 5 ], + col_comment = 50, + col_value_rj = col_comment - 3; + +var mexpr = []; +for (let m of mpatt) mexpr.push(new RegExp('^' + m + '$')); + +const argv = process.argv.slice(2), argc = argv.length; + +var src_file = 0, src_name = 'STDIN', dst_file, do_log = false; +if (argc > 0) { + let ind = 0; + if (argv[0] == '-v') { do_log = true; ind++; } + dst_file = src_file = src_name = argv[ind++]; + if (ind < argc) dst_file = argv[ind]; +} + +// Read from file or STDIN until it terminates +const filtered = process_text(fs.readFileSync(src_file).toString()); +if (dst_file) + fs.writeFileSync(dst_file, filtered); +else + console.log(filtered); + +// Find the pin pattern so non-pin defines can be skipped +function get_pin_pattern(txt) { + var r, m = 0, match_count = [ 0, 0, 0 ]; + definePatt.lastIndex = 0; + while ((r = definePatt.exec(txt)) !== null) { + let ind = -1; + if (mexpr.some((p) => { + ind++; + const didmatch = r[2].match(p); + return r[2].match(p); + }) ) { + const m = ++match_count[ind]; + if (m >= 10) { + return { match: mpatt[ind], pad:ppad[ind] }; + } + } + } + return null; +} + +function process_text(txt) { + if (!txt.length) return '(no text)'; + const patt = get_pin_pattern(txt); + if (!patt) return txt; + const pindefPatt = new RegExp(`^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+(${patt.match})\\s*(//.*)?$`), + noPinPatt = new RegExp(`^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+(-1)\\s*(//.*)?$`), + skipPatt = new RegExp('^(\\s*(//)?#define)\\s+(AT90USB|USBCON|BOARD_.+|.+_MACHINE_NAME|.+_SERIAL)\\s+(.+)\\s*(//.*)?$'), + aliasPatt = new RegExp('^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+([A-Z_][A-Z0-9_()]+)\\s*(//.*)?$'), + switchPatt = new RegExp('^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s*(//.*)?$'), + undefPatt = new RegExp('^(\\s*(//)?#undef)\\s+([A-Z_][A-Z0-9_]+)\\s*(//.*)?$'), + defPatt = new RegExp('^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+([-_\\w]+)\\s*(//.*)?$'), + condPatt = new RegExp('^(\\s*(//)?#(if|ifn?def|else|elif)(\\s+\\S+)*)\\s+(//.*)$'), + commPatt = new RegExp('^\\s{20,}(//.*)?$'); + const col_value_lj = col_comment - patt.pad - 2; + var r, out = '', check_comment_next = false; + txt.split('\n').forEach((line) => { + if (check_comment_next) + check_comment_next = ((r = commPatt.exec(line)) !== null); + + if (check_comment_next) + // Comments in column 45 + line = ''.rpad(col_comment) + r[1]; + + else if ((r = pindefPatt.exec(line)) !== null) { + // + // #define MY_PIN [pin] + // + if (do_log) console.log("pin:", line); + const pinnum = r[4].charAt(0) == 'P' ? r[4] : r[4].lpad(patt.pad); + line = r[1] + ' ' + r[3]; + line = line.rpad(col_value_lj) + pinnum; + if (r[5]) line = line.rpad(col_comment) + r[5]; + } + else if ((r = noPinPatt.exec(line)) !== null) { + // + // #define MY_PIN -1 + // + if (do_log) console.log("pin -1:", line); + line = r[1] + ' ' + r[3]; + line = line.rpad(col_value_lj) + '-1'; + if (r[5]) line = line.rpad(col_comment) + r[5]; + } + else if ((r = skipPatt.exec(line)) !== null) { + // + // #define SKIP_ME + // + if (do_log) console.log("skip:", line); + } + else if ((r = aliasPatt.exec(line)) !== null) { + // + // #define ALIAS OTHER + // + if (do_log) console.log("alias:", line); + line = r[1] + ' ' + r[3]; + line += r[4].lpad(col_value_rj + 1 - line.length); + if (r[5]) line = line.rpad(col_comment) + r[5]; + } + else if ((r = switchPatt.exec(line)) !== null) { + // + // #define SWITCH + // + if (do_log) console.log("switch:", line); + line = r[1] + ' ' + r[3]; + if (r[4]) line = line.rpad(col_comment) + r[4]; + check_comment_next = true; + } + else if ((r = defPatt.exec(line)) !== null) { + // + // #define ... + // + if (do_log) console.log("def:", line); + line = r[1] + ' ' + r[3] + ' '; + line += r[4].lpad(col_value_rj + 1 - line.length); + if (r[5]) line = line.rpad(col_comment - 1) + ' ' + r[5]; + } + else if ((r = undefPatt.exec(line)) !== null) { + // + // #undef ... + // + if (do_log) console.log("undef:", line); + line = r[1] + ' ' + r[3]; + if (r[4]) line = line.rpad(col_comment) + r[4]; + } + else if ((r = condPatt.exec(line)) !== null) { + // + // #if ... + // + if (do_log) console.log("cond:", line); + line = r[1].rpad(col_comment) + r[5]; + check_comment_next = true; + } + out += line + '\n'; + }); + return out.replace(/\n\n+/g, '\n\n').replace(/\n\n$/g, '\n'); +} |