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benmarch/spel2js

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src/Tokenizer.js

Summary

Maintainability
F
1 wk
Test Coverage

Function tokenize has a Cognitive Complexity of 182 (exceeds 5 allowed). Consider refactoring.
Open

function tokenize(inputData) {
    var expressionString = inputData,
        toProcess = inputData + '\0',
        max = toProcess.length,
        pos = 0,
Severity: Minor
Found in src/Tokenizer.js - About 3 days to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function tokenize has 464 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function tokenize(inputData) {
    var expressionString = inputData,
        toProcess = inputData + '\0',
        max = toProcess.length,
        pos = 0,
Severity: Major
Found in src/Tokenizer.js - About 2 days to fix

    File Tokenizer.js has 495 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    /*
 * Copyright 2002-2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
    Severity: Minor
    Found in src/Tokenizer.js - About 7 hrs to fix

      Function process has 192 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          function process() {
        var ch;

        while (pos < max) {
            ch = toProcess[pos];
      Severity: Major
      Found in src/Tokenizer.js - About 7 hrs to fix

        Function lexNumericLiteral has 96 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

            function lexNumericLiteral(firstCharIsZero) {
        var isReal = false,
            start = pos,
            ch = toProcess[pos + 1],
            isHex = ch === 'x' || ch === 'X',
        Severity: Major
        Found in src/Tokenizer.js - About 3 hrs to fix

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

              function lexQuotedStringLiteral() {
        var start = pos,
            terminated = false,
            ch;
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 7 hrs to fix
          src/Tokenizer.js on lines 287..313

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 177.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

              function lexDoubleQuotedStringLiteral() {
        var start = pos,
            terminated = false,
            ch;
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 7 hrs to fix
          src/Tokenizer.js on lines 260..286

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 177.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

                              if (isTwoCharToken(TokenKind.NE)) {
                        pushPairToken(TokenKind.NE);
                    }
                    else if (isTwoCharToken(TokenKind.PROJECT)) {
                        pushPairToken(TokenKind.PROJECT);
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 1 hr to fix
          src/Tokenizer.js on lines 182..190

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 68.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

                              else if (isTwoCharToken(TokenKind.ELVIS)) {
                        pushPairToken(TokenKind.ELVIS);
                    }
                    else if (isTwoCharToken(TokenKind.SAFE_NAVI)) {
                        pushPairToken(TokenKind.SAFE_NAVI);
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 1 hr to fix
          src/Tokenizer.js on lines 142..150

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 68.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

              function pushRealToken(data, isFloat, start, end) {
        if (isFloat) {
            tokens.push(new Token(TokenKind.LITERAL_REAL_FLOAT, data, start, end));
        }
        else {
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 1 hr to fix
          src/Tokenizer.js on lines 473..480

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 67.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

              function pushIntToken(data, isLong, start, end) {
        if (isLong) {
            tokens.push(new Token(TokenKind.LITERAL_LONG, data, start, end));
        }
        else {
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 1 hr to fix
          src/Tokenizer.js on lines 505..512

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 67.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

                          case '&':
                    if (!isTwoCharToken(TokenKind.SYMBOLIC_AND)) {
                        throw {
                            name: 'SpelParseException',
                            message: 'Missing character \'&\' in expression (' + expressionString + ') at position ' + pos
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 1 hr to fix
          src/Tokenizer.js on lines 169..177

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 59.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

                          case '|':
                    if (!isTwoCharToken(TokenKind.SYMBOLIC_OR)) {
                        throw {
                            name: 'SpelParseException',
                            message: 'Missing character \'|\' in expression (' + expressionString + ') at position ' + pos
          Severity: Major
          Found in src/Tokenizer.js and 1 other location - About 1 hr to fix
          src/Tokenizer.js on lines 160..168

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 59.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 3 locations. Consider refactoring.
          Open

              function isAlphabetic(ch) {
        if (ch.charCodeAt(0) > 255) {
            return false;
        }
        return (FLAGS[ch.charCodeAt(0)] & IS_ALPHA) !== 0;
          Severity: Major
          Found in src/Tokenizer.js and 2 other locations - About 55 mins to fix
          src/Tokenizer.js on lines 574..579
          src/Tokenizer.js on lines 588..593

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 54.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 3 locations. Consider refactoring.
          Open

              function isHexadecimalDigit(ch) {
        if (ch.charCodeAt(0) > 255) {
            return false;
        }
        return (FLAGS[ch.charCodeAt(0)] & IS_HEXDIGIT) !== 0;
          Severity: Major
          Found in src/Tokenizer.js and 2 other locations - About 55 mins to fix
          src/Tokenizer.js on lines 574..579
          src/Tokenizer.js on lines 581..586

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 54.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 3 locations. Consider refactoring.
          Open

              function isDigit(ch) {
        if (ch.charCodeAt(0) > 255) {
            return false;
        }
        return (FLAGS[ch.charCodeAt(0)] & IS_DIGIT) !== 0;
          Severity: Major
          Found in src/Tokenizer.js and 2 other locations - About 55 mins to fix
          src/Tokenizer.js on lines 581..586
          src/Tokenizer.js on lines 588..593

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 54.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 4 locations. Consider refactoring.
          Open

              for (ch = 'a'.charCodeAt(0); ch <= 'f'.charCodeAt(0); ch += 1) {
        FLAGS[ch] |= IS_HEXDIGIT;
    }
          Severity: Major
          Found in src/Tokenizer.js and 3 other locations - About 45 mins to fix
          src/Tokenizer.js on lines 39..41
          src/Tokenizer.js on lines 45..47
          src/Tokenizer.js on lines 48..50

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 50.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 4 locations. Consider refactoring.
          Open

              for (ch = 'A'.charCodeAt(0); ch <= 'Z'.charCodeAt(0); ch += 1) {
        FLAGS[ch] |= IS_ALPHA;
    }
          Severity: Major
          Found in src/Tokenizer.js and 3 other locations - About 45 mins to fix
          src/Tokenizer.js on lines 39..41
          src/Tokenizer.js on lines 42..44
          src/Tokenizer.js on lines 48..50

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 50.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 4 locations. Consider refactoring.
          Open

              for (ch = 'a'.charCodeAt(0); ch <= 'z'.charCodeAt(0); ch += 1) {
        FLAGS[ch] |= IS_ALPHA;
    }
          Severity: Major
          Found in src/Tokenizer.js and 3 other locations - About 45 mins to fix
          src/Tokenizer.js on lines 39..41
          src/Tokenizer.js on lines 42..44
          src/Tokenizer.js on lines 45..47

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 50.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 4 locations. Consider refactoring.
          Open

              for (ch = 'A'.charCodeAt(0); ch <= 'F'.charCodeAt(0); ch += 1) {
        FLAGS[ch] |= IS_HEXDIGIT;
    }
          Severity: Major
          Found in src/Tokenizer.js and 3 other locations - About 45 mins to fix
          src/Tokenizer.js on lines 42..44
          src/Tokenizer.js on lines 45..47
          src/Tokenizer.js on lines 48..50

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 50.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 6 locations. Consider refactoring.
          Open

                          case '<':
                    if (isTwoCharToken(TokenKind.LE)) {
                        pushPairToken(TokenKind.LE);
                    }
                    else {
          Severity: Major
          Found in src/Tokenizer.js and 5 other locations - About 35 mins to fix
          src/Tokenizer.js on lines 72..79
          src/Tokenizer.js on lines 83..90
          src/Tokenizer.js on lines 133..140
          src/Tokenizer.js on lines 152..159
          src/Tokenizer.js on lines 200..207

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 46.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 6 locations. Consider refactoring.
          Open

                          case '=':
                    if (isTwoCharToken(TokenKind.EQ)) {
                        pushPairToken(TokenKind.EQ);
                    }
                    else {
          Severity: Major
          Found in src/Tokenizer.js and 5 other locations - About 35 mins to fix
          src/Tokenizer.js on lines 72..79
          src/Tokenizer.js on lines 83..90
          src/Tokenizer.js on lines 133..140
          src/Tokenizer.js on lines 200..207
          src/Tokenizer.js on lines 208..215

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 46.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 6 locations. Consider refactoring.
          Open

                          case '+':
                    if (isTwoCharToken(TokenKind.INC)) {
                        pushPairToken(TokenKind.INC);
                    }
                    else {
          Severity: Major
          Found in src/Tokenizer.js and 5 other locations - About 35 mins to fix
          src/Tokenizer.js on lines 83..90
          src/Tokenizer.js on lines 133..140
          src/Tokenizer.js on lines 152..159
          src/Tokenizer.js on lines 200..207
          src/Tokenizer.js on lines 208..215

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 46.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 6 locations. Consider refactoring.
          Open

                          case '-':
                    if (isTwoCharToken(TokenKind.DEC)) {
                        pushPairToken(TokenKind.DEC);
                    }
                    else {
          Severity: Major
          Found in src/Tokenizer.js and 5 other locations - About 35 mins to fix
          src/Tokenizer.js on lines 72..79
          src/Tokenizer.js on lines 133..140
          src/Tokenizer.js on lines 152..159
          src/Tokenizer.js on lines 200..207
          src/Tokenizer.js on lines 208..215

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 46.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 6 locations. Consider refactoring.
          Open

                          case '>':
                    if (isTwoCharToken(TokenKind.GE)) {
                        pushPairToken(TokenKind.GE);
                    }
                    else {
          Severity: Major
          Found in src/Tokenizer.js and 5 other locations - About 35 mins to fix
          src/Tokenizer.js on lines 72..79
          src/Tokenizer.js on lines 83..90
          src/Tokenizer.js on lines 133..140
          src/Tokenizer.js on lines 152..159
          src/Tokenizer.js on lines 208..215

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 46.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 6 locations. Consider refactoring.
          Open

                          case '^':
                    if (isTwoCharToken(TokenKind.SELECT_FIRST)) {
                        pushPairToken(TokenKind.SELECT_FIRST);
                    }
                    else {
          Severity: Major
          Found in src/Tokenizer.js and 5 other locations - About 35 mins to fix
          src/Tokenizer.js on lines 72..79
          src/Tokenizer.js on lines 83..90
          src/Tokenizer.js on lines 152..159
          src/Tokenizer.js on lines 200..207
          src/Tokenizer.js on lines 208..215

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 46.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

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