base/hskip-to-hspace

Level

AuthoringFaithfulCorpusEquivEvery profile applies this rule; its output remains suitable for authoring.

Fidelity

readingPreserves notation, reading order, and structural roles.

Package

base

Source

base/authoring/spacing_alias/hskip_to_hspace.rs (opens in new tab)

Triggers

\hskip command

Eliminates

\hskip command

Produces

\hspace command

Rewrite patterns#

1. \hskip #1\hspace{#1}

Examples#

Each example shows this rule applied in isolation. A complete normalization profile may make additional changes.

A \hskip 1em B

A \hspace{1em} B

u\hskip 0.25em v

u\hspace{0.25em} v

\text{A\hskip 1em B}

\text{A\hspace{1em}B}

\text{A\hskip{1em} B}

\text{A\hspace{1em}B}

Related rules#

Same family#

• ams/nobreakspace-to-tilde Collapse nobreakspace to the canonical nonbreaking space token.
• base/break-to-linebreak Collapse break to the explicit linebreak command.
• base/newline-to-linebreak Collapse newline to the explicit linebreak command.
• base/control-space-to-tilde Rewrite math-mode control space to the canonical active space token.
• base/gt-space-to-colon-space Collapse \> to the canonical medium math space command \:
• base/hfil-to-hfill Collapse hfil to the canonical hfill command under MathJax spacing semantics.
• base/hfilll-to-hfill Collapse hfilll to the canonical hfill command.
• base/negthinspace-to-neg-comma-space Collapse negthinspace to the explicit negative thin math space command.
• base/space-to-tilde Collapse space to the explicit nonbreaking space token.
• base/thinspace-to-comma-space Collapse thinspace to the explicit thin math space command.
• base/double-enspace-to-quad Rewrite two adjacent enspaces to one exact-width quad.
• base/double-quad-to-qquad Merge two adjacent quads into one qquad for authoring normalization.
• base/small-spacer-merge-to-enspace Merge exact half-em small-spacer chunks into enspace in one pass.
• base/allowbreak-drop Drop allowbreak as a pure linebreak hint during cleanup-oriented normalization.
• base/badbreak-drop Drop badbreak as a pure linebreak hint during cleanup-oriented normalization.
• base/goodbreak-drop Drop goodbreak as a pure linebreak hint during cleanup-oriented normalization.
• base/mathstrut-drop Drop the invisible mathstrut layout helper in cleanup-oriented normalization.
• base/nobreak-drop Drop nobreak as a pure linebreak hint during cleanup-oriented normalization.
• base/strut-drop Drop the fixed empty strut node in cleanup-oriented normalization.
• base/enspace-drop Drop enspace in math mode and collapse each text-mode enspace run to one ordinary space.
• base/qquad-drop Drop qquad in math mode and collapse each text-mode qquad run to one ordinary space.
• base/quad-drop Drop quad in math mode and collapse each text-mode quad run to one ordinary space.
• base/mkern-to-mspace Collapse mkern to the explicit mspace command.
• base/mskip-to-mspace Collapse mskip to the explicit mspace command.

Notes#

MathJax's unbraced Hskip dimension scanner consumes one ASCII space after the unit, while a braced dimension preserves following text space. TeXForm's AST does not retain whether a scalar dimension was braced, so this rule canonicalizes the common primitive form by consuming one following U+0020 in text content. A braced text source can therefore lose an intentional space, making worst-case fidelity approximate. The base record remains the single owner; text examples include textmacros to cover the same-name text record. The produced hspace follows the current s m:L signature in math and text modes: emit an explicit false Star slot before the Dimension slot. This rewrite remains unstarred and does not introduce \hspace*; serialization and reparsing preserve the two-slot argument shape.

Disable this rule#

TransformEngine(profile="corpus", disable_rules=["base/hskip-to-hspace"])

new TransformEngine({ profile: 'corpus', disableRules: ['base/hskip-to-hspace'] })

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