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Add a pins formatting script

Scott Lahteine 4 lat temu
rodzic
commit
9340a33980
1 zmienionych plików z 141 dodań i 0 usunięć
  1. 141
    0
      buildroot/share/scripts/pinsformat.js

+ 141
- 0
buildroot/share/scripts/pinsformat.js Wyświetl plik

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+#!/usr/bin/env node
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+
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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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+
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+const fs = require("fs");
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+
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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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+
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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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+
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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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+
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+var mexpr = [];
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+for (let m of mpatt) mexpr.push(new RegExp('^' + m + '$'));
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+
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+const argv = process.argv.slice(2), argc = argv.length;
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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