Use build script instead.

Map between macro and independen languages for better coverage.

wordlang-gen/src/main.rs

@@ -109,8 +109,8 @@ fn main() -> Result<()> {
         }
     }
 
-    let mut languages = Vec::new();
-    let mut matchers = Vec::new();
+    let stdout = io::stdout();
+    let mut lock = stdout.lock();
 
     for (language, mut results) in entries.into_iter() {
         results.sort_unstable();
@@ -170,96 +170,14 @@ fn main() -> Result<()> {
 
         regex.push_str(")+$");
 
-        let re = Regex::new(&regex).expect("failed to build regex");
+        let _ = Regex::new(&regex).expect("failed to build regex");
 
-        languages.push(language);
-        matchers.push(re);
+        assert!(!regex.contains('\n'));
+        assert!(!regex.contains('\t'));
+
+        writeln!(lock, "{}\t{}", language.to_639_3(), regex).expect("failed to write to stdout");
     }
 
-    assert_eq!(languages.len(), matchers.len());
-
-    if languages.is_empty() {
-        return Ok(());
-    }
-
-    let stdout = io::stdout();
-    let mut lock = stdout.lock();
-
-    writeln!(lock, "use isolang::Language;").expect("failed to write to stdout");
-    writeln!(lock, "use once_cell::sync::Lazy;").expect("failed to write to stdout");
-    writeln!(lock, "use regex::{{Regex, RegexSet}};").expect("failed to write to stdout");
-
-    writeln!(lock).expect("failed to write to stdout");
-
-    writeln!(
-        lock,
-        "pub static LANGUAGES: [Language; {}] = [",
-        languages.len()
-    )
-    .expect("failed to write to stdout");
-
-    for language in &languages {
-        writeln!(lock, "    Language::{},", title(language.to_639_3()))
-            .expect("failed to write to stdout");
-    }
-
-    writeln!(lock, "];").expect("failed to write to stdout");
-
-    writeln!(lock).expect("failed to write to stdout");
-
-    writeln!(
-        lock,
-        "pub static REGEX_SET: Lazy<RegexSet> = Lazy::new(|| {{",
-    )
-    .expect("failed to write to stdout");
-    writeln!(lock, "    RegexSet::new(vec![",).expect("failed to write to stdout");
-
-    for matcher in &matchers {
-        writeln!(lock, "        \"{}\",", matcher).expect("failed to write to stdout");
-    }
-
-    writeln!(lock, "    ]).unwrap()",).expect("failed to write to stdout");
-
-    writeln!(lock, "}});").expect("failed to write to stdout");
-
-    writeln!(lock).expect("failed to write to stdout");
-
-    for (language, matcher) in languages.iter().zip(matchers.iter()) {
-        writeln!(
-            lock,
-            "pub static RE_{}: Lazy<Regex> = Lazy::new(|| Regex::new(\"{}\").unwrap());",
-            language.to_639_3().to_ascii_uppercase(),
-            matcher,
-        )
-        .expect("failed to write to stdout");
-    }
-
-    writeln!(lock).expect("failed to write to stdout");
-
-    writeln!(lock, "impl super::LanguageExt for Language {{",).expect("failed to write to stdout");
-    writeln!(
-        lock,
-        "    fn is_match(&self, word: &str) -> Option<bool> {{",
-    )
-    .expect("failed to write to stdout");
-    writeln!(lock, "        match self {{",).expect("failed to write to stdout");
-
-    for language in &languages {
-        writeln!(
-            lock,
-            "            Language::{} => Some(RE_{}.is_match(word)),",
-            title(language.to_639_3()),
-            language.to_639_3().to_ascii_uppercase(),
-        )
-        .expect("failed to write to stdout");
-    }
-
-    writeln!(lock, "            _ => None,",).expect("failed to write to stdout");
-
-    writeln!(lock, "        }}",).expect("failed to write to stdout");
-    writeln!(lock, "    }}",).expect("failed to write to stdout");
-    writeln!(lock, "}}",).expect("failed to write to stdout");
-
     lock.flush().expect("failed to flush to stdout");
 
     Ok(())

wordlang/Cargo.toml

@@ -3,6 +3,7 @@ name = "wordlang"
 version = "0.1.0"
 authors = ["Anders Olsson <anders.e.olsson@gmail.com>"]
 edition = "2018"
+build = "build.rs"
 
 [dependencies]
 isolang = "1.0"

wordlang/build.rs

@@ -0,0 +1,180 @@
+use std::collections::HashMap;
+use std::env;
+use std::error::Error;
+use std::fs::File;
+use std::io::{BufRead, BufReader, BufWriter, Write};
+use std::path::Path;
+
+fn title(s: &str) -> String {
+    let mut c = s.chars();
+    match c.next() {
+        None => String::new(),
+        Some(f) => f.to_uppercase().chain(c).collect(),
+    }
+}
+
+fn read_languages() -> Result<HashMap<String, String>, Box<dyn Error>> {
+    let lines = File::open("languages.txt")
+        .map(BufReader::new)?
+        .lines()
+        .filter_map(Result::ok)
+        .collect::<Vec<_>>();
+
+    let mut entries = HashMap::new();
+
+    for line in &lines {
+        let parts = line.splitn(2, '\t').collect::<Vec<_>>();
+
+        let lang = parts[0].to_string();
+        let regex = parts[1].to_string();
+
+        entries.insert(lang, regex);
+    }
+
+    Ok(entries)
+}
+
+fn read_mappings() -> Result<(HashMap<String, Vec<String>>, HashMap<String, String>), Box<dyn Error>>
+{
+    let lines = File::open("iso-639-3-macrolanguages.tab")
+        .map(BufReader::new)?
+        .lines()
+        .filter_map(Result::ok)
+        .collect::<Vec<_>>();
+
+    let mut m_to_l = HashMap::new();
+    let mut l_to_m = HashMap::new();
+
+    for line in &lines {
+        let parts = line.splitn(3, '\t').collect::<Vec<_>>();
+
+        let m = parts[0].to_string();
+        let l = parts[1].to_string();
+
+        m_to_l
+            .entry(m.clone())
+            .and_modify(|map: &mut Vec<String>| map.push(l.clone()))
+            .or_insert_with(|| vec![l.clone()]);
+
+        l_to_m.insert(l.clone(), m.clone());
+    }
+
+    Ok((m_to_l, l_to_m))
+}
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let languages = read_languages()?;
+    let (m_to_l, l_to_m) = read_mappings()?;
+
+    let path = Path::new(&env::var("OUT_DIR")?).join("languages.rs");
+    let mut file = BufWriter::new(File::create(&path)?);
+
+    writeln!(
+        file,
+        "pub static LANGUAGES: [Language; {}] = [",
+        languages.len()
+    )?;
+
+    for (language, _) in &languages {
+        writeln!(file, "    Language::{},", title(language))?;
+    }
+
+    writeln!(file, "];")?;
+
+    writeln!(file)?;
+
+    writeln!(
+        file,
+        "pub static REGEX_SET: Lazy<RegexSet> = Lazy::new(|| {{",
+    )?;
+
+    writeln!(file, "    RegexSet::new(vec![",)?;
+
+    for (_, regex) in &languages {
+        writeln!(file, "        \"{}\",", regex)?;
+    }
+
+    writeln!(file, "    ]).unwrap()",)?;
+
+    writeln!(file, "}});")?;
+
+    writeln!(file)?;
+
+    for (language, regex) in &languages {
+        writeln!(
+            file,
+            "pub static RE_{}: Lazy<Regex> = Lazy::new(|| Regex::new(\"{}\").unwrap());",
+            language.to_ascii_uppercase(),
+            regex,
+        )?;
+    }
+
+    writeln!(file)?;
+
+    writeln!(file, "impl LanguageExt for Language {{",)?;
+    writeln!(
+        file,
+        "    fn is_match(&self, word: &str) -> Option<bool> {{",
+    )?;
+    writeln!(file, "        match self {{",)?;
+
+    let mut table = HashMap::new();
+
+    for (language, _) in &languages {
+        let mut sub = vec![language];
+
+        if let Some(ls) = m_to_l.get(language) {
+            for l in ls {
+                if !languages.contains_key(l) {
+                    continue;
+                }
+
+                if !sub.contains(&l) {
+                    sub.push(l);
+                }
+            }
+        }
+
+        if let Some(m) = l_to_m.get(language) {
+            if languages.contains_key(m) && !sub.contains(&m) {
+                sub.push(m);
+            }
+        }
+
+        table.insert(language, sub);
+    }
+
+    for (language, _) in &languages {
+        if let Some(m) = l_to_m.get(language) {
+            table
+                .entry(m)
+                .and_modify(|sub: &mut Vec<&String>| {
+                    if !sub.contains(&language) {
+                        sub.push(language);
+                    }
+                })
+                .or_insert_with(|| vec![language]);
+        }
+    }
+
+    for (parent, children) in &table {
+        writeln!(file, "            Language::{} => {{", title(parent))?;
+
+        let statment = children
+            .iter()
+            .map(|child| format!("RE_{}.is_match(word)", child.to_ascii_uppercase()))
+            .collect::<Vec<_>>()
+            .join(" | ");
+
+        writeln!(file, "                Some({})", statment)?;
+        writeln!(file, "            }}")?;
+    }
+
+    writeln!(file, "            _ => None,",)?;
+
+    writeln!(file, "        }}",)?;
+    writeln!(file, "    }}",)?;
+    writeln!(file, "}}",)?;
+
+    Ok(())
+}

wordlang/iso-639-3-macrolanguages.tab

@@ -0,0 +1,454 @@
+M_Id	I_Id	I_Status
+aka	fat	A
+aka	twi	A
+ara	aao	A
+ara	abh	A
+ara	abv	A
+ara	acm	A
+ara	acq	A
+ara	acw	A
+ara	acx	A
+ara	acy	A
+ara	adf	A
+ara	aeb	A
+ara	aec	A
+ara	afb	A
+ara	ajp	A
+ara	apc	A
+ara	apd	A
+ara	arb	A
+ara	arq	A
+ara	ars	A
+ara	ary	A
+ara	arz	A
+ara	auz	A
+ara	avl	A
+ara	ayh	A
+ara	ayl	A
+ara	ayn	A
+ara	ayp	A
+ara	bbz	R
+ara	pga	A
+ara	shu	A
+ara	ssh	A
+aym	ayc	A
+aym	ayr	A
+aze	azb	A
+aze	azj	A
+bal	bcc	A
+bal	bgn	A
+bal	bgp	A
+bik	bcl	A
+bik	bhk	R
+bik	bln	A
+bik	bto	A
+bik	cts	A
+bik	fbl	A
+bik	lbl	A
+bik	rbl	A
+bik	ubl	A
+bnc	ebk	A
+bnc	lbk	A
+bnc	obk	A
+bnc	rbk	A
+bnc	vbk	A
+bua	bxm	A
+bua	bxr	A
+bua	bxu	A
+chm	mhr	A
+chm	mrj	A
+cre	crj	A
+cre	crk	A
+cre	crl	A
+cre	crm	A
+cre	csw	A
+cre	cwd	A
+del	umu	A
+del	unm	A
+den	scs	A
+den	xsl	A
+din	dib	A
+din	dik	A
+din	dip	A
+din	diw	A
+din	dks	A
+doi	dgo	A
+doi	xnr	A
+est	ekk	A
+est	vro	A
+fas	pes	A
+fas	prs	A
+ful	ffm	A
+ful	fub	A
+ful	fuc	A
+ful	fue	A
+ful	fuf	A
+ful	fuh	A
+ful	fui	A
+ful	fuq	A
+ful	fuv	A
+gba	bdt	A
+gba	gbp	A
+gba	gbq	A
+gba	gmm	A
+gba	gso	A
+gba	gya	A
+gba	mdo	R
+gon	esg	A
+gon	ggo	R
+gon	gno	A
+gon	wsg	A
+grb	gbo	A
+grb	gec	A
+grb	grj	A
+grb	grv	A
+grb	gry	A
+grn	gnw	A
+grn	gug	A
+grn	gui	A
+grn	gun	A
+grn	nhd	A
+hai	hax	A
+hai	hdn	A
+hbs	bos	A
+hbs	cnr	A
+hbs	hrv	A
+hbs	srp	A
+hmn	blu	R
+hmn	cqd	A
+hmn	hea	A
+hmn	hma	A
+hmn	hmc	A
+hmn	hmd	A
+hmn	hme	A
+hmn	hmg	A
+hmn	hmh	A
+hmn	hmi	A
+hmn	hmj	A
+hmn	hml	A
+hmn	hmm	A
+hmn	hmp	A
+hmn	hmq	A
+hmn	hms	A
+hmn	hmw	A
+hmn	hmy	A
+hmn	hmz	A
+hmn	hnj	A
+hmn	hrm	A
+hmn	huj	A
+hmn	mmr	A
+hmn	muq	A
+hmn	mww	A
+hmn	sfm	A
+iku	ike	A
+iku	ikt	A
+ipk	esi	A
+ipk	esk	A
+jrb	ajt	A
+jrb	aju	A
+jrb	jye	A
+jrb	yhd	A
+jrb	yud	A
+kau	kby	A
+kau	knc	A
+kau	krt	A
+kln	enb	A
+kln	eyo	A
+kln	niq	A
+kln	oki	A
+kln	pko	A
+kln	sgc	A
+kln	spy	A
+kln	tec	A
+kln	tuy	A
+kok	gom	A
+kok	knn	A
+kom	koi	A
+kom	kpv	A
+kon	kng	A
+kon	kwy	A
+kon	ldi	A
+kpe	gkp	A
+kpe	xpe	A
+kur	ckb	A
+kur	kmr	A
+kur	sdh	A
+lah	hnd	A
+lah	hno	A
+lah	jat	A
+lah	phr	A
+lah	pmu	R
+lah	pnb	A
+lah	skr	A
+lah	xhe	A
+lav	ltg	A
+lav	lvs	A
+luy	bxk	A
+luy	ida	A
+luy	lkb	A
+luy	lko	A
+luy	lks	A
+luy	lri	A
+luy	lrm	A
+luy	lsm	A
+luy	lto	A
+luy	lts	A
+luy	lwg	A
+luy	nle	A
+luy	nyd	A
+luy	rag	A
+man	emk	A
+man	mku	A
+man	mlq	A
+man	mnk	A
+man	msc	A
+man	mwk	A
+man	myq	R
+mlg	bhr	A
+mlg	bjq	R
+mlg	bmm	A
+mlg	bzc	A
+mlg	msh	A
+mlg	plt	A
+mlg	skg	A
+mlg	tdx	A
+mlg	tkg	A
+mlg	txy	A
+mlg	xmv	A
+mlg	xmw	A
+mon	khk	A
+mon	mvf	A
+msa	bjn	A
+msa	btj	A
+msa	bve	A
+msa	bvu	A
+msa	coa	A
+msa	dup	A
+msa	hji	A
+msa	ind	A
+msa	jak	A
+msa	jax	A
+msa	kvb	A
+msa	kvr	A
+msa	kxd	A
+msa	lce	A
+msa	lcf	A
+msa	liw	A
+msa	max	A
+msa	meo	A
+msa	mfa	A
+msa	mfb	A
+msa	min	A
+msa	mly	R
+msa	mqg	A
+msa	msi	A
+msa	mui	A
+msa	orn	A
+msa	ors	A
+msa	pel	A
+msa	pse	A
+msa	tmw	A
+msa	urk	A
+msa	vkk	A
+msa	vkt	A
+msa	xmm	A
+msa	zlm	A
+msa	zmi	A
+msa	zsm	A
+mwr	dhd	A
+mwr	mtr	A
+mwr	mve	A
+mwr	rwr	A
+mwr	swv	A
+mwr	wry	A
+nep	dty	A
+nep	npi	A
+nor	nno	A
+nor	nob	A
+oji	ciw	A
+oji	ojb	A
+oji	ojc	A
+oji	ojg	A
+oji	ojs	A
+oji	ojw	A
+oji	otw	A
+ori	ory	A
+ori	spv	A
+orm	gax	A
+orm	gaz	A
+orm	hae	A
+orm	orc	A
+pus	pbt	A
+pus	pbu	A
+pus	pst	A
+que	cqu	R
+que	qub	A
+que	qud	A
+que	quf	A
+que	qug	A
+que	quh	A
+que	quk	A
+que	qul	A
+que	qup	A
+que	qur	A
+que	qus	A
+que	quw	A
+que	qux	A
+que	quy	A
+que	quz	A
+que	qva	A
+que	qvc	A
+que	qve	A
+que	qvh	A
+que	qvi	A
+que	qvj	A
+que	qvl	A
+que	qvm	A
+que	qvn	A
+que	qvo	A
+que	qvp	A
+que	qvs	A
+que	qvw	A
+que	qvz	A
+que	qwa	A
+que	qwc	A
+que	qwh	A
+que	qws	A
+que	qxa	A
+que	qxc	A
+que	qxh	A
+que	qxl	A
+que	qxn	A
+que	qxo	A
+que	qxp	A
+que	qxr	A
+que	qxt	A
+que	qxu	A
+que	qxw	A
+raj	bgq	A
+raj	gda	A
+raj	gju	A
+raj	hoj	A
+raj	mup	A
+raj	wbr	A
+rom	rmc	A
+rom	rmf	A
+rom	rml	A
+rom	rmn	A
+rom	rmo	A
+rom	rmw	A
+rom	rmy	A
+sqi	aae	A
+sqi	aat	A
+sqi	aln	A
+sqi	als	A
+srd	sdc	A
+srd	sdn	A
+srd	src	A
+srd	sro	A
+swa	swc	A
+swa	swh	A
+syr	aii	A
+syr	cld	A
+tmh	taq	A
+tmh	thv	A
+tmh	thz	A
+tmh	ttq	A
+uzb	uzn	A
+uzb	uzs	A
+yid	ydd	A
+yid	yih	A
+zap	zaa	A
+zap	zab	A
+zap	zac	A
+zap	zad	A
+zap	zae	A
+zap	zaf	A
+zap	zai	A
+zap	zam	A
+zap	zao	A
+zap	zaq	A
+zap	zar	A
+zap	zas	A
+zap	zat	A
+zap	zav	A
+zap	zaw	A
+zap	zax	A
+zap	zca	A
+zap	zoo	A
+zap	zpa	A
+zap	zpb	A
+zap	zpc	A
+zap	zpd	A
+zap	zpe	A
+zap	zpf	A
+zap	zpg	A
+zap	zph	A
+zap	zpi	A
+zap	zpj	A
+zap	zpk	A
+zap	zpl	A
+zap	zpm	A
+zap	zpn	A
+zap	zpo	A
+zap	zpp	A
+zap	zpq	A
+zap	zpr	A
+zap	zps	A
+zap	zpt	A
+zap	zpu	A
+zap	zpv	A
+zap	zpw	A
+zap	zpx	A
+zap	zpy	A
+zap	zpz	A
+zap	zsr	A
+zap	ztc	R
+zap	zte	A
+zap	ztg	A
+zap	ztl	A
+zap	ztm	A
+zap	ztn	A
+zap	ztp	A
+zap	ztq	A
+zap	zts	A
+zap	ztt	A
+zap	ztu	A
+zap	ztx	A
+zap	zty	A
+zha	ccx	R
+zha	ccy	R
+zha	zch	A
+zha	zeh	A
+zha	zgb	A
+zha	zgm	A
+zha	zgn	A
+zha	zhd	A
+zha	zhn	A
+zha	zlj	A
+zha	zln	A
+zha	zlq	A
+zha	zqe	A
+zha	zyb	A
+zha	zyg	A
+zha	zyj	A
+zha	zyn	A
+zha	zzj	A
+zho	cdo	A
+zho	cjy	A
+zho	cmn	A
+zho	cnp	A
+zho	cpx	A
+zho	csp	A
+zho	czh	A
+zho	czo	A
+zho	gan	A
+zho	hak	A
+zho	hsn	A
+zho	lzh	A
+zho	mnp	A
+zho	nan	A
+zho	wuu	A
+zho	yue	A
+zza	diq	A
+zza	kiu	A

wordlang/src/lib.rs

@@ -1,16 +1,18 @@
-pub use isolang::Language;
+use isolang::Language;
+use once_cell::sync::Lazy;
+use regex::{Regex, RegexSet};
 
-mod data;
+include!(concat!(env!("OUT_DIR"), "/languages.rs"));
 
 pub trait LanguageExt {
     fn is_match(&self, word: &str) -> Option<bool>;
 }
 
 pub fn matches(word: &str) -> Vec<Language> {
-    data::REGEX_SET
+    REGEX_SET
         .matches(word)
         .into_iter()
-        .map(|idx| data::LANGUAGES[idx])
+        .map(|idx| LANGUAGES[idx])
         .collect::<Vec<_>>()
 }
 
@@ -26,7 +28,15 @@ mod tests {
     }
 
     #[test]
-    fn test_is_match() {
-        assert_eq!(Language::Swe.is_match("hello"), Some(true));
+    fn test_ben_is_match() {
+        assert_eq!(Language::Ben.is_match("আফার"), Some(true));
+        assert_eq!(Language::Ben.is_match("\u{09BC}"), Some(true));
+    }
+
+    #[test]
+    fn test_nor_is_match() {
+        assert_eq!(Language::Nor.is_match("solnedgang"), Some(true));
+        assert_eq!(Language::Nno.is_match("solnedgang"), Some(true));
+        assert_eq!(Language::Nob.is_match("solnedgang"), Some(true));
     }
 }