A formatter for the leptos view! macro
All notable changes are documented in: CHANGELOG.md
cargo install leptosfmt
or for trying out unreleased features:
cargo install --git https://github.com/bram209/leptosfmt.git
Usage: leptosfmt [OPTIONS] <INPUT_PATTERN>
Arguments:
<INPUT_PATTERN> A file, directory or glob
Options:
-m, --max-width <MAX_WIDTH> [default: 100]
-t, --tab-spaces <TAB_SPACES> [default: 4]
-h, --help Print help
-V, --version Print version
Single file
Format a specific file by name
leptosfmt ./examples/counter/src/lib.rs
Current directory
Format all .rs files within the current directory
leptosfmt .
Directory
Format all .rs files within the examples directory
leptosfmt ./examples
Glob
Format all .rs files ending with _test.rs within the examples directory
leptosfmt ./examples/**/*_test.rs
The pretty-printer is based on Philip Karlton’s Mesa pretty-printer, as described in the appendix to Derek C. Oppen, “Pretty Printing” (1979), Stanford Computer Science Department STAN-CS-79-770, http://i.stanford.edu/pub/cstr/reports/cs/tr/79/770/CS-TR-79-770.pdf.
This algorithm's implementation is taken from prettyplease which is adapted from rustc_ast_pretty.
The algorithm takes from an input stream of length n and an output device with margin width m, the algorithm requires time O(n) and space O(m).
The algorithm is described in terms of two parallel processes; the first scans the input stream to determine the space required to print logical blocks of tokens; the second uses this information to decide where to break lines of text; the two processes
communicate by means of a buffer of size o(m). The algorithm does not wait for the entire stream to be input, but begins printing as soon as it has received a linefull of input.