Remove service-compiler related code.

pkg/servicec/lib/util.dart

-// Copyright (c) 2015, the Dartino project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE.md file.
-
-library servicec.util;
-
-const String validIdentifier =
-    "A valid identifier contains only alphanumeric characters and " +
-    "underscores, and does not start with a digit.";
-
-/// Takes a [camelize]d string and reverses the camelization: each capital case
-/// is considered to be the start of a word; each word is lowered and words are
-/// joined together by underscores. Existing underscores are preserved, and if
-/// they already separate words, no additional underscores are added (e.g.
-/// "HelloWorld" and "Hello_World" both become "hello_world").
-///
-/// Throws an [ArgumentError] if the input is not a valid identifier.
-String underscore(String text) {
-  if (!isValidIdentifier(text)) {
-    throw new ArgumentError(
-        "The argument should be a valid identifier. $validIdentifier");
-  }
-
-  List<String> chunks = <String>[];
-  int chunkStart = 0;
-  // The result is that chunk[0] is never capitalized, and chunk[i>0] is always
-  // capitalized.
-  for (int i = 0; i < text.length; ++i) {
-    if (isUpper(text.codeUnitAt(i)) || isNumeric(text.codeUnitAt(i))) {
-      chunks.add(text.substring(chunkStart, i));
-      chunkStart = i;
-    }
-  }
-  chunks.add(text.substring(chunkStart));
-
-  String result = chunks[0];
-  for (int i = 1; i < chunks.length; ++i) {
-    if (result.isNotEmpty &&
-        !result.endsWith('_')) {
-      result += '_';
-    }
-    result += toLower(chunks[i]);
-  }
-  return result;
-}
-
-/// Removes underscores and [capitalize]s the words which they surround. Throws
-/// an [ArgumentError] if the input is not a valid identifier or if camelization
-/// produces an invalid identifier (e.g. "_1_" would be camelized as "1", which
-/// is not a valid identifier).
-String camelize(String text) {
-  if (!isValidIdentifier(text)) {
-    throw new ArgumentError(
-        "The argument should be a valid identifier. $validIdentifier");
-  }
-  String result =
-    text.splitMapJoin('_', onMatch: (_) => '', onNonMatch: capitalize);
-  if (!isValidIdentifier(result)) {
-    throw new ArgumentError(
-        "The argument should be such that the output of camelize is a valid " +
-        "identifier. $validIdentifier");
-  }
-  return result;
-}
-
-/// Checks that [text] contains only alphanumeric (a-z, A-Z, 0-9) characters and
-/// underscores, and that it doesn't start with a digit.
-bool isValidIdentifier(String text) {
-  if (text.isEmpty) return false;
-  if (!isAlphabetical(text.codeUnitAt(0)) &&
-      !isUnderscore(text.codeUnitAt(0))) return false;
-  for (int i = 1; i < text.length; ++i) {
-    if (!isAlphanumericOrUnderscore(text.codeUnitAt(i))) return false;
-  }
-  return true;
-}
-
-/// Uppers the first letter of the word and lowers the rest. If the word is
-/// empty just returns it.
-String capitalize(String word) {
-  if (word.isEmpty) return word;
-  return charToUpper(word[0]) + toLower(word.substring(1));
-}
-
-/// Makes a string containing a single latin letter uppercase. Assumes that the
-/// size of [string] is 1.
-String charToUpper(String string) {
-  int codeUnit = string.codeUnitAt(0);
-  if (isLower(codeUnit)) {
-    codeUnit += 'A'.codeUnitAt(0) - 'a'.codeUnitAt(0);
-  }
-  return new String.fromCharCode(codeUnit);
-}
-
-/// Makes all latin letters in [string] lowercase.
-String toLower(String string) {
-  List<int> codeUnits = new List<int>(string.length);
-  for (int i = 0; i < string.length; ++i) {
-    codeUnits[i] = string.codeUnitAt(i);
-    if (isUpper(codeUnits[i])) {
-      codeUnits[i] += 'a'.codeUnitAt(0) - 'A'.codeUnitAt(0);
-    }
-  }
-  return new String.fromCharCodes(codeUnits);
-}
-
-/// Checks if [charCode] corresponds to a latin letter, a digit, or the
-/// underscore character.
-bool isAlphanumericOrUnderscore(int charCode) {
-  return isAlphabetical(charCode) ||
-    isNumeric(charCode) ||
-    isUnderscore(charCode);
-}
-
-/// Checks if [charCode] corresponds to a latin letter.
-bool isAlphabetical(int charCode) {
-  return isLower(charCode) || isUpper(charCode);
-}
-
-/// Checks if [charCode] corresponds to a lowercase latin letter.
-bool isLower(int charCode) {
-  final int a = 'a'.codeUnitAt(0);
-  final int z = 'z'.codeUnitAt(0);
-  return a <= charCode && charCode <= z;
-}
-
-/// Checks if [charCode] corresponds to an uppercase latin letter.
-bool isUpper(int charCode) {
-  final int A = 'A'.codeUnitAt(0);
-  final int Z = 'Z'.codeUnitAt(0);
-  return A <= charCode && charCode <= Z;
-}
-
-/// Checks if [charCode] corresponds to a digit.
-bool isNumeric(int charCode) {
-  final int _0 = '0'.codeUnitAt(0);
-  final int _9 = '9'.codeUnitAt(0);
-  return _0 <= charCode && charCode <= _9;
-}
-
-/// Checks if [charCode] corresponds the underscore character.
-bool isUnderscore(int charCode) {
-  final int _ = '_'.codeUnitAt(0);
-  return _ == charCode;
-}