1 | const scan = (
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2 | string: string,
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3 | pattern: RegExp,
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4 | callback: (match: RegExpMatchArray) => void
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5 | ) => {
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6 | let result = "";
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7 |
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8 | while (string.length > 0) {
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9 | const match = string.match(pattern);
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10 |
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11 | if (match && match.index != null && match[0] != null) {
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12 | result += string.slice(0, match.index);
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13 | result += callback(match);
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14 | string = string.slice(match.index + match[0].length);
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15 | } else {
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16 | result += string;
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17 | string = "";
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18 | }
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19 | }
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20 |
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21 | return result;
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22 | };
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23 |
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24 |
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25 |
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26 |
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27 |
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28 |
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29 |
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30 | export const split = (line: string = "") => {
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31 | const words = [];
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32 | let field = "";
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33 | scan(
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34 | line,
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35 | /\s*(?:([^\s\\\'\"]+)|'((?:[^\'\\]|\\.)*)'|"((?:[^\"\\]|\\.)*)"|(\\.?)|(\S))(\s|$)?/,
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36 | (match) => {
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37 | const [_raw, word, sq, dq, escape, garbage, separator] = match;
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38 |
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39 | if (garbage != null) {
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40 | throw new Error(`Unmatched quote: ${line}`);
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41 | }
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42 |
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43 | if (word) {
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44 | field += word;
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45 | } else {
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46 | let addition;
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47 |
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48 | if (sq) {
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49 | addition = sq;
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50 | } else if (dq) {
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51 | addition = dq;
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52 | } else if (escape) {
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53 | addition = escape;
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54 | }
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55 |
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56 | if (addition) {
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57 | field += addition.replace(/\\(?=.)/, "");
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58 | }
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59 | }
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60 |
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61 | if (separator != null) {
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62 | words.push(field);
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63 | field = "";
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64 | }
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65 | }
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66 | );
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67 |
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68 | if (field) {
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69 | words.push(field);
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70 | }
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71 |
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72 | return words;
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73 | };
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74 |
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75 |
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76 |
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77 |
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78 |
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79 |
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80 |
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81 | export const escape = (str: string = "") => {
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82 | return str
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83 | .replace(/([^A-Za-z0-9_\-.,:\/@\n])/g, "\\$1")
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84 | .replace(/\n/g, "'\n'");
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85 | };
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