add table records
This commit is contained in:
parent
4d5d7172ce
commit
4b1d8718d6
3
.gitignore
vendored
3
.gitignore
vendored
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@ -1 +1,4 @@
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/target
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*.ttf
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*.otf
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|
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268
Cargo.lock
generated
Normal file
268
Cargo.lock
generated
Normal file
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@ -0,0 +1,268 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "anstream"
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version = "0.6.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
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dependencies = [
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"anstyle",
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"anstyle-parse",
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"anstyle-query",
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"anstyle-wincon",
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"colorchoice",
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"is_terminal_polyfill",
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"utf8parse",
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]
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[[package]]
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name = "anstyle"
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version = "1.0.10"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
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[[package]]
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name = "anstyle-parse"
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version = "0.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
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dependencies = [
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"utf8parse",
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]
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[[package]]
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name = "anstyle-query"
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version = "1.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
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dependencies = [
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"windows-sys",
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]
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[[package]]
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name = "anstyle-wincon"
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version = "3.0.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
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dependencies = [
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"anstyle",
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"windows-sys",
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]
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[[package]]
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name = "bincode"
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version = "1.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
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dependencies = [
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"serde",
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]
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[[package]]
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name = "clap"
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version = "4.5.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fb3b4b9e5a7c7514dfa52869339ee98b3156b0bfb4e8a77c4ff4babb64b1604f"
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dependencies = [
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"clap_builder",
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"clap_derive",
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]
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[[package]]
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name = "clap_builder"
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version = "4.5.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b17a95aa67cc7b5ebd32aa5370189aa0d79069ef1c64ce893bd30fb24bff20ec"
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dependencies = [
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"anstream",
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"anstyle",
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"clap_lex",
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"strsim",
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]
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[[package]]
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name = "clap_derive"
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version = "4.5.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4ac6a0c7b1a9e9a5186361f67dfa1b88213572f427fb9ab038efb2bd8c582dab"
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dependencies = [
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"heck",
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "clap_lex"
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version = "0.7.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "afb84c814227b90d6895e01398aee0d8033c00e7466aca416fb6a8e0eb19d8a7"
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[[package]]
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name = "colorchoice"
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version = "1.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
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[[package]]
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name = "font-explorer"
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version = "0.1.0"
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dependencies = [
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"bincode",
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"clap",
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"serde",
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]
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[[package]]
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name = "heck"
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version = "0.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
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[[package]]
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name = "is_terminal_polyfill"
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version = "1.70.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
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[[package]]
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name = "proc-macro2"
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version = "1.0.89"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f139b0662de085916d1fb67d2b4169d1addddda1919e696f3252b740b629986e"
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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version = "1.0.37"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "serde"
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version = "1.0.215"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6513c1ad0b11a9376da888e3e0baa0077f1aed55c17f50e7b2397136129fb88f"
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dependencies = [
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"serde_derive",
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]
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[[package]]
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name = "serde_derive"
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version = "1.0.215"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ad1e866f866923f252f05c889987993144fb74e722403468a4ebd70c3cd756c0"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "strsim"
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version = "0.11.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
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[[package]]
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name = "syn"
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version = "2.0.87"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "25aa4ce346d03a6dcd68dd8b4010bcb74e54e62c90c573f394c46eae99aba32d"
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dependencies = [
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"proc-macro2",
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"quote",
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"unicode-ident",
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]
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[[package]]
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name = "unicode-ident"
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version = "1.0.13"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
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[[package]]
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name = "utf8parse"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
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[[package]]
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name = "windows-sys"
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version = "0.59.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
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dependencies = [
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"windows-targets",
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]
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[[package]]
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name = "windows-targets"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
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dependencies = [
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"windows_aarch64_gnullvm",
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"windows_aarch64_msvc",
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"windows_i686_gnu",
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"windows_i686_gnullvm",
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"windows_i686_msvc",
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"windows_x86_64_gnu",
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"windows_x86_64_gnullvm",
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"windows_x86_64_msvc",
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]
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[[package]]
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name = "windows_aarch64_gnullvm"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
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[[package]]
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name = "windows_aarch64_msvc"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
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[[package]]
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name = "windows_i686_gnu"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
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[[package]]
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name = "windows_i686_gnullvm"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
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[[package]]
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name = "windows_i686_msvc"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
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||||
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||||
[[package]]
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||||
name = "windows_x86_64_gnu"
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||||
version = "0.52.6"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
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[[package]]
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||||
name = "windows_x86_64_gnullvm"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
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[[package]]
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name = "windows_x86_64_msvc"
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||||
version = "0.52.6"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
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@ -4,3 +4,6 @@ version = "0.1.0"
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edition = "2021"
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[dependencies]
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bincode = "1.3.3"
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clap = { version = "4.5.21", features = ["derive"] }
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serde = { version = "1.0.215", features = ["derive", "serde_derive"] }
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29
src/font.rs
Normal file
29
src/font.rs
Normal file
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@ -0,0 +1,29 @@
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mod table_directory;
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use std::io::{BufReader, Read, Seek};
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use bincode::{Options, Result};
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use table_directory::TableDirectory;
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fn deserialize<R: Read + Seek, T: serde::de::DeserializeOwned>(reader: R) -> Result<T> {
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bincode::options().with_big_endian().with_fixint_encoding().deserialize_from::<R, T>(reader)
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}
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#[derive(Debug)]
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pub struct Font<R: Read + Seek> {
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data_source: BufReader<R>,
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table_directory: TableDirectory
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}
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impl<R: Read + Seek> Font<R> {
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pub fn new(reader: R) -> Result<Self> {
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let mut buf_reader = BufReader::new(reader);
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let table_directory = TableDirectory::new(&mut buf_reader)?;
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Ok(Font {
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data_source: buf_reader,
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table_directory: table_directory
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})
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}
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}
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39
src/font/table_directory.rs
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39
src/font/table_directory.rs
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use std::{collections::HashMap, io::{Read, Seek}};
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use bincode::Result;
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use serde::Deserialize;
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use crate::font::deserialize;
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#[derive(Deserialize, Debug)]
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struct TableDirectoryHeader {
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sfnt_version: u32,
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num_tables: u16,
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}
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#[derive(Deserialize, Debug)]
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struct TableDirectoryRecord {
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pub table_tag: u32,
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pub checksum: u32,
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pub offset: u32,
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pub length: u32
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}
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#[derive(Debug, Default)]
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pub struct TableDirectory(pub HashMap<u32, TableDirectoryRecord>);
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impl TableDirectory {
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pub fn new<R: Read + Seek>(reader: &mut R) -> Result<TableDirectory> {
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let header: TableDirectoryHeader = deserialize(reader.by_ref())?;
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let mut tables: HashMap<u32, TableDirectoryRecord> = HashMap::with_capacity(header.num_tables as usize);
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reader.seek_relative(3 * size_of::<u16>() as i64)?;
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for _ in 0..header.num_tables {
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let record: TableDirectoryRecord = deserialize(reader.by_ref())?;
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tables.insert(record.table_tag, record);
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}
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Ok(TableDirectory(tables))
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}
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}
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25
src/main.rs
25
src/main.rs
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fn main() {
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println!("Hello, world!");
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mod font;
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use std::{fs::File, io::Result};
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use clap::Parser;
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use font::Font;
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#[derive(Parser, Debug)]
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#[command(version, about, long_about = None)]
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struct Args {
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file: String
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}
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fn main() -> Result<()> {
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let args = Args::parse();
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let font = Font::new(File::open(args.file)?);
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let Ok(font) = font else {
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panic!("{}", font.unwrap_err().to_string());
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};
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dbg!(font);
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Ok(())
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}
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|||
Loading…
Reference in a new issue