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Function Messenger has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
Open

function Messenger (writeMode, supress, mute) {
  'use strict';
  writeMode = writeMode || 'stderr';
  supress = (!!supress || !!mute);
  mute = !!mute;
Severity: Minor
Found in src/cli/cli.js - About 1 hr 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

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

      if (typeof ext.listeners !== 'object') {
        ret.valid = false;
        ret.error = baseMsg + '"listeners" property must be an object but ' + typeof ext.listeners + ' given';
        return ret;
      }
Severity: Major
Found in src/showdown.js and 1 other location - About 1 hr to fix
src/showdown.js on lines 341..345

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 60.

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 (typeof ext.filter !== 'function') {
        ret.valid = false;
        ret.error = baseMsg + '"filter" must be a function, but ' + typeof ext.filter + ' given';
        return ret;
      }
Severity: Major
Found in src/showdown.js and 1 other location - About 1 hr to fix
src/showdown.js on lines 323..327

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 60.

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

Function replaceRecursiveRegExp has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
Open

showdown.helper.replaceRecursiveRegExp = function (str, replacement, left, right, flags) {
  'use strict';

  if (!showdown.helper.isFunction(replacement)) {
    var repStr = replacement;
Severity: Minor
Found in src/helpers.js - About 1 hr 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 Messenger has 30 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function Messenger (writeMode, supress, mute) {
  'use strict';
  writeMode = writeMode || 'stderr';
  supress = (!!supress || !!mute);
  mute = !!mute;
Severity: Minor
Found in src/cli/cli.js - About 1 hr to fix

Function createEvent has 9 arguments (exceeds 4 allowed). Consider refactoring.
Open

  function createEvent (rgx, evtName, wholeMatch, text, id, url, title, options, globals) {
Severity: Major
Found in src/subParsers/makehtml/links.js - About 1 hr to fix

Function substitutePreCodeTags has 26 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    function substitutePreCodeTags (doc) {

      var pres = doc.querySelectorAll('pre'),
          presPH = [];
Severity: Minor
Found in src/converter.js - About 1 hr to fix

Function writeImageTag has 8 arguments (exceeds 4 allowed). Consider refactoring.
Open

  function writeImageTag (wholeMatch, altText, linkId, url, width, height, m5, title) {
Severity: Major
Found in src/subParsers/makehtml/images.js - About 1 hr to fix

Function writeImageTagBase64 has 8 arguments (exceeds 4 allowed). Consider refactoring.
Open

  function writeImageTagBase64 (wholeMatch, altText, linkId, url, width, height, m5, title) {
Severity: Major
Found in src/subParsers/makehtml/images.js - About 1 hr to fix

Function writeImageTagBaseUrl has 8 arguments (exceeds 4 allowed). Consider refactoring.
Open

  function writeImageTagBaseUrl (wholeMatch, altText, linkId, url, width, height, m5, title) {
Severity: Major
Found in src/subParsers/makehtml/images.js - About 1 hr to fix

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

      for (var i = 0; i < langExtensions.length; ++i) {
        if (langExtensions[i] === ext) {
          langExtensions.splice(i, 1);
        }
      }
Severity: Minor
Found in src/converter.js and 1 other location - About 55 mins to fix
src/converter.js on lines 538..542

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 2 locations. Consider refactoring.
Open

      for (var ii = 0; ii < outputModifiers.length; ++ii) {
        if (outputModifiers[ii] === ext) {
          outputModifiers.splice(ii, 1);
        }
      }
Severity: Minor
Found in src/converter.js and 1 other location - About 55 mins to fix
src/converter.js on lines 533..537

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

Function subParser has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

showdown.subParser = function (name, func) {
  'use strict';
  if (showdown.helper.isString(name)) {
    if (typeof func !== 'undefined') {
      parsers[name] = func;
Severity: Minor
Found in src/showdown.js - About 55 mins 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 replaceFunc has 7 arguments (exceeds 4 allowed). Consider refactoring.
Open

  var replaceFunc = function (wholeMatch, linkId, url, width, height, blankLines, title) {
Severity: Major
Found in src/subParsers/makehtml/stripLinkDefinitions.js - About 50 mins to fix

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

      if (showdown.helper.isUndefined(ext.listeners)) {
        ret.valid = false;
        ret.error = baseMsg + '. Extensions of type "listener" must have a property called "listeners"';
        return ret;
      }
Severity: Minor
Found in src/showdown.js and 1 other location - About 50 mins to fix
src/showdown.js on lines 355..359

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 52.

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 (showdown.helper.isUndefined(ext.replace)) {
        ret.valid = false;
        ret.error = baseMsg + '"regex" extensions must implement a replace string or function';
        return ret;
      }
Severity: Minor
Found in src/showdown.js and 1 other location - About 50 mins to fix
src/showdown.js on lines 309..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 52.

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

Avoid deeply nested control flow statements.
Open

        if (!--t) {
          end = m.index + m[0].length;
          var obj = {
            left: {start: start, end: s},
            match: {start: s, end: m.index},
Severity: Major
Found in src/helpers.js - About 45 mins to fix

Avoid deeply nested control flow statements.
Open

              if (matches !== null) {
                language = matches[1];
                break;
              }
Severity: Major
Found in src/converter.js - About 45 mins to fix

Avoid deeply nested control flow statements.
Open

          if (typeof ext.listeners[ln] !== 'function') {
            ret.valid = false;
            ret.error = baseMsg + '"listeners" property must be an hash of [event name]: [callback]. listeners.' + ln +
              ' must be a function but ' + typeof ext.listeners[ln] + ' given';
            return ret;
Severity: Major
Found in src/showdown.js - About 45 mins to fix

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

    text = text.replace(/__(\S[\s\S]*?)__/g, function (wm, m) {
      return (/\S$/.test(m)) ? '<u>' + m + '</u>' : wm;
    });
Severity: Minor
Found in src/subParsers/makehtml/underline.js and 1 other location - About 40 mins to fix
src/subParsers/makehtml/underline.js on lines 18..20

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 48.

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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