Build the given TeX Live package, applying all of PHASES in order.

Parse and evaluate toml document from string STR.

Parse and evaluate toml document from file FILE.

Retrieve a value from ALIST of alists, descending into each value of the list KEY. For instance a KEY (a b) would retrieve alist[a][b].

Build the given Typst package, applying all of PHASES in order.

Set $TYPST_PACKAGE_PATH to PATH while evaluating THUNK.

Note that TYPST_PACKAGE_PATH only supports a single directory, and some build scripts assume it to be writable.

Given REFERENCE and FILE, both of which are absolute file names, return the file name of FILE relative to REFERENCE.

(relative-file-name "/gnu/store/foo" "/gnu/store/bin/bar") => "../bin/bar"

Note that this is from a purely lexical standpoint; conversely, ".." is *not* resolved lexically on POSIX in the presence of symlinks.

Build in the OUTPUT directory a symlink tree that is the union of all the INPUTS, using SYMLINK to create symlinks. As a special case, if CREATE-ALL-DIRECTORIES?, creates the subdirectories in the output directory to make sure the caller can modify them later.

When two or more regular files collide, call RESOLVE-COLLISION with the list of colliding files and use the one that it returns; or, if RESOLVE-COLLISION returns #f, skip the faulty file altogether.

This is like 'every', but process all the elements of LST instead of stopping as soon as PRED returns false. This is useful when PRED has side effects, such as displaying warnings or error messages.

Replace the first pair in ALIST whose car is KEY with the KEY/VALUE pair. An error is raised when no such pair exists.

Return #t if DIR exists and is a directory.

Read from PORT character-by-character; for each match against PATTERN, call (PROC MATCH RESULT), where RESULT is seeded with INIT. PATTERN is a list of SRFI-14 char-sets. Call (UNMATCHED CHAR RESULT) for each unmatched character.

Return the directory name of the store.

Call PROC with a name of a temporary file and open output port to that file; close the file and delete it when leaving the dynamic extent of this call.

Return the lexicographically sorted list of files under DIR for which PRED returns true. PRED is passed two arguments: the absolute file name, and its stat buffer; the default predicate always returns true. PRED can also be a regular expression, in which case it is equivalent to (file-name-predicate PRED). STAT is used to obtain file information; using 'lstat' means that symlinks are not followed. If DIRECTORIES? is true, then directories will also be included. If FAIL-ON-ERROR? is true, raise an exception upon error.

Return true if FILE starts with the right magic bytes.