| | | 1 | | using System; |
| | | 2 | | using System.Collections.Generic; |
| | | 3 | | using System.Linq; |
| | | 4 | | |
| | | 5 | | namespace NanoCLang { |
| | | 6 | | /// <summary> |
| | | 7 | | /// Provides a superclass for string formatter tokens. |
| | | 8 | | /// </summary> |
| | | 9 | | public abstract class StringFormatterToken { |
| | | 10 | | /// <summary> |
| | | 11 | | /// Implicitly converts a string value to a token with the same <paramref name="value"/>. |
| | | 12 | | /// </summary> |
| | | 13 | | /// <param name="value">Value of the token.</param> |
| | | 14 | | public static implicit operator StringFormatterToken(string value) => new StringToken(value); |
| | | 15 | | /// <summary> |
| | | 16 | | /// Create a new token list that concatenates the list of tokens with the separator inbetween every two tokens. |
| | | 17 | | /// </summary> |
| | | 18 | | /// <param name="tokens">Enumeration of tokens.</param> |
| | | 19 | | /// <param name="separator">Separator between the output tokens.</param> |
| | | 20 | | /// <returns>Enumeration of tokens with <paramref name="separator"/> inbetween the <paramref name="tokens"/>.</r |
| | | 21 | | public static IEnumerable<StringFormatterToken> Separated(IEnumerable<StringFormatterToken> tokens, StringFormat |
| | | 22 | | bool first = true; |
| | | 23 | | foreach (var token in tokens) { |
| | | 24 | | if (first) first = false; |
| | | 25 | | else yield return separator; |
| | | 26 | | yield return token; |
| | | 27 | | } |
| | | 28 | | } |
| | | 29 | | /// <inheritdoc cref="Separated(IEnumerable{StringFormatterToken}, StringFormatterToken)"/> |
| | | 30 | | public static IEnumerable<StringFormatterToken> Separated(IEnumerable<StringFormatterToken> tokens, string separ |
| | | 31 | | => Separated(tokens, (StringFormatterToken)separator); |
| | | 32 | | /// <inheritdoc cref="Separated(IEnumerable{StringFormatterToken}, StringFormatterToken)"/> |
| | | 33 | | public static IEnumerable<StringFormatterToken> Separated<T, A>(IEnumerable<T> objs, A args, StringFormatterToke |
| | | 34 | | bool first = true; |
| | | 35 | | foreach (var obj in objs) { |
| | | 36 | | if (first) first = false; |
| | | 37 | | else if (separator is StringToken s) foreach (var tk in s.ReplaceNewLines()) yield return tk; |
| | | 38 | | else yield return separator; |
| | | 39 | | foreach (var token in obj.Tokens(args)) yield return token; |
| | | 40 | | } |
| | | 41 | | } |
| | | 42 | | /// <summary> |
| | | 43 | | /// Prints the <paramref name="inner"/> tokens indented by the <paramref name="indent"/> amount. |
| | | 44 | | /// </summary> |
| | | 45 | | /// <param name="indent">Amount of indentation.</param> |
| | | 46 | | /// <param name="inner">Indented block</param> |
| | | 47 | | /// <returns>Token enumeration that represents the indented block.</returns> |
| | | 48 | | public static IEnumerable<StringFormatterToken> Indented(int indent, Func<IEnumerable<StringFormatterToken>> inn |
| | | 49 | | yield return new IndentChangeToken(indent); |
| | | 50 | | foreach (var tk in inner()) yield return tk; |
| | | 51 | | yield return new IndentChangeToken(-indent); |
| | | 52 | | } |
| | | 53 | | /// <inheritdoc cref="Separated(IEnumerable{StringFormatterToken}, StringFormatterToken)"/> |
| | | 54 | | public static IEnumerable<StringFormatterToken> Separated<T, A>(IEnumerable<T> blocks, A args, string separator) |
| | | 55 | | => Separated(blocks, args, (StringFormatterToken)separator); |
| | | 56 | | /// <inheritdoc cref="Separated(IEnumerable{StringFormatterToken}, StringFormatterToken)"/> |
| | | 57 | | public static IEnumerable<StringFormatterToken> Separated(IEnumerable<string> strings, StringFormatterToken sepa |
| | | 58 | | /// <inheritdoc cref="Separated(IEnumerable{StringFormatterToken}, StringFormatterToken)"/> |
| | | 59 | | public static IEnumerable<StringFormatterToken> Separated(IEnumerable<string> strings, string separator) => Sepa |
| | | 60 | | } |
| | | 61 | | /// <summary> |
| | | 62 | | /// Provides a class for token enumerations for the string formatter <see cref="StringFormatter"/>. |
| | | 63 | | /// </summary> |
| | | 64 | | public class StringToken : StringFormatterToken { |
| | | 65 | | /// <summary> |
| | | 66 | | /// Constructs a new string token with a given <paramref name="value"/>. |
| | | 67 | | /// </summary> |
| | | 68 | | /// <param name="value">Value of the token.</param> |
| | | 69 | | public StringToken(string value) { |
| | | 70 | | Value = value; |
| | | 71 | | } |
| | | 72 | | /// <summary> |
| | | 73 | | /// Gets the value of the token. |
| | | 74 | | /// </summary> |
| | | 75 | | public string Value { get; } |
| | | 76 | | /// <summary> |
| | | 77 | | /// Replace newlines in the value with newline tokens. |
| | | 78 | | /// </summary> |
| | | 79 | | /// <returns>Enumeration of tokens with newlines as tokens.</returns> |
| | | 80 | | internal IEnumerable<StringFormatterToken> ReplaceNewLines() |
| | | 81 | | => Separated(Value.Split('\n', StringSplitOptions.None), new NewLineToken()); |
| | | 82 | | } |
| | | 83 | | /// <summary> |
| | | 84 | | /// Tokens used to push the current indentation of the formatter. |
| | | 85 | | /// </summary> |
| | | 86 | | public class IndentChangeToken : StringFormatterToken { |
| | | 87 | | /// <summary> |
| | | 88 | | /// Constructs a new indent change token that increases/decreases the current indent by <paramref name="amount"/ |
| | | 89 | | /// </summary> |
| | | 90 | | /// <param name="amount">Indent change amount.</param> |
| | 356 | 91 | | public IndentChangeToken(int amount) { |
| | 178 | 92 | | Amount = amount; |
| | 178 | 93 | | } |
| | | 94 | | /// <summary> |
| | | 95 | | /// The amount of indent to insert/remove. |
| | | 96 | | /// </summary> |
| | 300 | 97 | | public int Amount { get; } |
| | | 98 | | } |
| | | 99 | | /// <summary> |
| | | 100 | | /// Token used to print a new line in the formatter (recognizes formatters indent) |
| | | 101 | | /// </summary> |
| | | 102 | | public class NewLineToken : StringFormatterToken { } |
| | | 103 | | } |