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Linters.md

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Linting

Duplicate labels

Duplicate labels are highlighted when latex-workshop.check.duplicatedLabels.enabled is set to true. The computation of the duplicates is based on the data collected for intellisense, so we cannot update the duplicates more often than intellisense. When intellisense.update.aggressive.enabled is set to false, duplicates are updated on file save. When intellisense.update.aggressive.enabled is set to true, duplicates are updated after stopped typing for longer than latex-workshop.intellisense.update.delay.

latex-workshop.check.duplicatedLabels.enabled

Enable checking for duplicated labels.

A new check is triggered every time the intellisense data is updated, see intellisense.update.aggressive.enabled .

type default value
boolean true

Linting

LaTeX Workshop currently supports two LaTeX linters, namely, ChkTeX and LaCheck. These two linters can be enabled/disabled separately by latex-workshop.linting.chktex.enabled and latex-workshop.linting.lacheck.enabled, respectively.

The linter behavior is controlled by the following two configuration items.

latex-workshop.linting.run

When LaTeX should be linted. If set to onSave, the whole LaTeX project will be linted upon saving. If set to onType, the active document will be linted when input is stopped for a period of time defined in latex-workshop.linting.delay, in addition to the behavior of onSave.

type default value
enum "onSave"

latex-workshop.linting.delay

When latex-workshop.linting.run is set to onType, defines the delay in milliseconds for linter to wait after stopped typing.

type default value
number 500

ChkTeX

The ChkTeX utility is a LaTeX semantic checker. Once installed, and the relevant setting enabled it is automatically run on any open TeX documents. Its output is parsed by the extension and displayed in the Problems panel.

Auto load of .chktexrc configuration files is performed in the following order

  1. Manually configured -l setting in chktex.exec.args
  2. The .chktexrc file (if exists) in the same folder as the main LaTeX file
  3. The .chktexrc file (if exists) at the project root folder.

latex-workshop.linting.chktex.enabled

Enable linting LaTeX with ChkTeX.

The active document will be linted when no document changes for a defined period of time.

The full project will be linted from the root on file save.

type default value
boolean false

latex-workshop.linting.chktex.exec.path

Define the location of ChkTeX executive file.

This command will be joint with latex-workshop.linting.chktex.exec.args to form a complete ChkTeX command.

type default value
string "chktex"

latex-workshop.linting.chktex.exec.args

Linter arguments to check LaTeX syntax

Arguments must be in separate strings in the array. Additional arguments, i.e., -I0 -f%f:%l:%c:%d:%k:%n:%m\n will be appended when constructing the command. Current file contents will be piped to the command through stdin.

type default value
array of strings ["-wall", "-n22", "-n30", "-e16", "-q"]

latex-workshop.linting.chktex.convertOutput.column.enabled

Enable converting ChkTeX outputs' column numbers for non-ASCII characters.

type default value
boolean true

latex-workshop.linting.chktex.convertOutput.column.chktexrcTabSize

Write the TabSize number from .chktexrc. The default value -1 means that LaTeX Workshop will try to find .chktexrc and to read the value from it.

type default value
number -1

LaCheck

The LaCheck utility is a consistency checker for LaTeX documents. Once installed, and the relevant setting enabled it is automatically run on any open TeX documents. Its output is parsed by the extension and displayed in the Problems panel. Detailed introduction to LaCheck can be found here.

latex-workshop.linting.lacheck.enabled

Enable linting LaTeX with LaCheck.

The active document will be linted when no document changes for a defined period of time.

The full project will be linted from the root on file save.

type default value
boolean false

latex-workshop.linting.lacheck.exec.path

Define the location of LaCheck executive file.

"latex-workshop.linting.lacheck.exec.path": "lacheck"

type default value
string "lacheck"