Add a pins formatting script
This commit is contained in:
Scott Lahteine
committed by
Scott Lahteine
Scott Lahteine
parent
e62b52da99
commit
9340a33980
141
buildroot/share/scripts/pinsformat.js
Executable file
141
buildroot/share/scripts/pinsformat.js
Executable file
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#!/usr/bin/env node
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//
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// Formatter script for pins_MYPINS.h files
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//
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// Usage: mffmt [infile] [outfile]
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//
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// With no parameters convert STDIN to STDOUT
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//
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const fs = require("fs");
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// String lpad / rpad
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String.prototype.lpad = function(len, chr) {
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if (!len) return this;
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if (chr === undefined) chr = ' ';
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var s = this+'', need = len - s.length;
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if (need > 0) s = new Array(need+1).join(chr) + s;
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return s;
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};
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String.prototype.rpad = function(len, chr) {
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if (!len) return this;
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if (chr === undefined) chr = ' ';
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var s = this+'', need = len - s.length;
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if (need > 0) s += new Array(need+1).join(chr);
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return s;
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};
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const mpatt = [ '-?\\d+', 'P[A-I]\\d+', 'P\\d_\\d+' ],
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definePatt = new RegExp(`^\\s*(//)?#define\\s+[A-Z_][A-Z0-9_]+\\s+(${mpatt[0]}|${mpatt[1]}|${mpatt[2]})\\s*(//.*)?$`, 'gm'),
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ppad = [ 3, 4, 5 ],
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col_comment = 50,
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col_value_rj = col_comment - 3;
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var mexpr = [];
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for (let m of mpatt) mexpr.push(new RegExp('^' + m + '$'));
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const argv = process.argv.slice(2), argc = argv.length;
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var src_file = 0, src_name = 'STDIN', dst_file;
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if (argc > 0) {
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src_file = src_name = argv[0];
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dst_file = argv[argc > 1 ? 1 : 0];
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}
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// Read from file or STDIN until it terminates
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const filtered = process_text(fs.readFileSync(src_file).toString());
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if (dst_file)
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fs.writeFileSync(dst_file, filtered);
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else
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console.log(filtered);
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// Find the pin pattern so non-pin defines can be skipped
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function get_pin_pattern(txt) {
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var r, m = 0, match_count = [ 0, 0, 0 ];
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definePatt.lastIndex = 0;
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while ((r = definePatt.exec(txt)) !== null) {
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let ind = -1;
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if (mexpr.some((p) => {
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ind++;
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const didmatch = r[2].match(p);
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return r[2].match(p);
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}) ) {
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const m = ++match_count[ind];
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if (m >= 10) {
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return { match: mpatt[ind], pad:ppad[ind] };
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}
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}
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}
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return null;
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}
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function process_text(txt) {
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if (!txt.length) return '(no text)';
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const patt = get_pin_pattern(txt);
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if (!patt) return txt;
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const pindefPatt = new RegExp(`^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+(${patt.match})\\s*(//.*)?$`),
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noPinPatt = new RegExp(`^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+(-1)\\s*(//.*)?$`),
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skipPatt = new RegExp('^(\\s*(//)?#define)\\s+(AT90USB|USBCON|BOARD_.+|.+_MACHINE_NAME|.+_SERIAL)\\s+(.+)\\s*(//.*)?$'),
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aliasPatt = new RegExp('^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+([A-Z_][A-Z0-9_()]+)\\s*(//.*)?$'),
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switchPatt = new RegExp('^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s*(//.*)?$'),
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undefPatt = new RegExp('^(\\s*(//)?#undef)\\s+([A-Z_][A-Z0-9_]+)\\s*(//.*)?$'),
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defPatt = new RegExp('^(\\s*(//)?#define)\\s+([A-Z_][A-Z0-9_]+)\\s+(\\w+)\\s*(//.*)?$'),
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condPatt = new RegExp('^(\\s*(//)?#(if|ifn?def|else|elif)(\\s+\\S+)*)\\s+(//.*)$'),
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commPatt = new RegExp('^\\s{20,}(//.*)?$');
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const col_value_lj = col_comment - patt.pad - 2;
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var r, out = '', check_comment_next = false;
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txt.split('\n').forEach((line) => {
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if (check_comment_next)
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check_comment_next = ((r = commPatt.exec(line)) !== null);
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if (check_comment_next)
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// Comments in column 45
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line = ''.rpad(col_comment) + r[1];
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else if ((r = pindefPatt.exec(line)) !== null) {
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//
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// #define MY_PIN [pin]
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//
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const pinnum = r[4].charAt(0) == 'P' ? r[4] : r[4].lpad(patt.pad);
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line = r[1] + ' ' + r[3];
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line = line.rpad(col_value_lj) + pinnum;
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if (r[5]) line = line.rpad(col_comment) + r[5];
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}
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else if ((r = noPinPatt.exec(line)) !== null) {
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//
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// #define MY_PIN -1
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//
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line = r[1] + ' ' + r[3];
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line = line.rpad(col_value_lj) + '-1';
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if (r[5]) line = line.rpad(col_comment) + r[5];
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}
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else if ((r = skipPatt.exec(line)) !== null) {
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}
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else if ((r = aliasPatt.exec(line)) !== null) {
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line = r[1] + ' ' + r[3];
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line += r[4].lpad(col_value_rj + 1 - line.length);
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if (r[5]) line = line.rpad(col_comment) + r[5];
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}
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else if ((r = switchPatt.exec(line)) !== null) {
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line = r[1] + ' ' + r[3];
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if (r[4]) line = line.rpad(col_comment) + r[4];
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check_comment_next = true;
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}
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else if ((r = defPatt.exec(line)) !== null) {
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line = r[1] + ' ' + r[3] + ' ' + r[4];
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if (r[5]) line = line.rpad(col_comment) + r[5];
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}
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else if ((r = undefPatt.exec(line)) !== null) {
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line = r[1] + ' ' + r[3];
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if (r[4]) line = line.rpad(col_comment) + r[4];
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}
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else if ((r = condPatt.exec(line)) !== null) {
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line = r[1].rpad(col_comment) + r[5];
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check_comment_next = true;
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}
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out += line + '\n';
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});
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return out.replace(/\n\n+/g, '\n\n').replace(/\n\n$/g, '\n');
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}
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