Add greek mappings and parsing

src/tokenizer/mod.rs

@@ -1,9 +1,9 @@
 use crate::tokens::constants::TokenPattern;
 use crate::tokens::mappings::{
-    get_accent_mapping, get_arrow_mapping, get_grouping_mappings, get_logical_mappings,
-    get_misc_mappings, get_operation_mappings, get_relation_mapping,
+    get_accent_mappings, get_arrow_mapping, get_greek_mappings, get_grouping_mappings,
+    get_logical_mappings, get_misc_mappings, get_operation_mappings, get_relation_mapping,
 };
-use crate::tokens::{Accent, Arrow, Grouping, Logical, Misc, Operation, Relation, Token};
+use crate::tokens::{Accent, Arrow, Greek, Grouping, Logical, Misc, Operation, Relation, Token};
 use charred::tapemachine::CharTapeMachine;
 use std::collections::HashMap;
 use std::fmt::Debug;
@@ -111,9 +111,23 @@ impl Tokenizer {
 
     fn parse_accent(&mut self) -> Option<Accent> {
         lazy_static! {
-            static ref ACCENT_MAPPING: Vec<HashMap<TokenPattern, Accent>> = get_accent_mapping();
+            static ref ACCENT_MAPPINGS: Vec<HashMap<TokenPattern, Accent>> = get_accent_mappings();
         }
-        for mapping in ACCENT_MAPPING.iter() {
+        for mapping in ACCENT_MAPPINGS.iter() {
+            for key in mapping.keys() {
+                if self.ctm.check_any_str_sequence(*key) {
+                    return Some(mapping[key].clone());
+                }
+            }
+        }
+        None
+    }
+
+    fn parse_greek(&mut self) -> Option<Greek> {
+        lazy_static! {
+            static ref GREEK_MAPPINGS: Vec<HashMap<TokenPattern, Greek>> = get_greek_mappings();
+        }
+        for mapping in GREEK_MAPPINGS.iter() {
             for key in mapping.keys() {
                 if self.ctm.check_any_str_sequence(*key) {
                     return Some(mapping[key].clone());

src/tokens/mappings.rs

@@ -1,5 +1,6 @@
 use crate::tokens::constants::accents::*;
 use crate::tokens::constants::arrows::*;
+use crate::tokens::constants::greek::*;
 use crate::tokens::constants::grouping::*;
 use crate::tokens::constants::logical::*;
 use crate::tokens::constants::misc::*;
@@ -7,7 +8,7 @@ use crate::tokens::constants::operations::*;
 use crate::tokens::constants::relations::*;
 
 use crate::tokens::constants::TokenPattern;
-use crate::tokens::{Accent, Arrow, Grouping, Logical, Misc, Operation, Relation};
+use crate::tokens::{Accent, Arrow, Greek, Grouping, Logical, Misc, Operation, Relation};
 use std::cell::RefCell;
 use std::collections::HashMap;
 
@@ -193,7 +194,7 @@ pub fn get_arrow_mapping() -> Vec<HashMap<TokenPattern, Arrow>> {
     ]
 }
 
-pub fn get_accent_mapping() -> Vec<HashMap<TokenPattern, Accent>> {
+pub fn get_accent_mappings() -> Vec<HashMap<TokenPattern, Accent>> {
     vec![hashmap! {
         G_HAT => Accent::Hat,
         G_UNDERLINE => Accent::Underline,
@@ -209,3 +210,44 @@ pub fn get_accent_mapping() -> Vec<HashMap<TokenPattern, Accent>> {
         G_CANCEL => Accent::Cancel,
     }]
 }
+
+pub fn get_greek_mappings() -> Vec<HashMap<TokenPattern, Greek>> {
+    vec![hashmap! {
+        G_ALPHA => Greek::Alpha,
+        G_BETA => Greek::Beta,
+        G_GAMMA => Greek::Gamma,
+        G_BIGGAMMA => Greek::BigGamma,
+        G_DELTA => Greek::Delta,
+        G_BIGDELTA => Greek::BigDelta,
+        G_EPSILON => Greek::Epsilon,
+        G_VAREPSILON => Greek::VarEpsilon,
+        G_ZETA => Greek::Zeta,
+        G_ETA => Greek::Eta,
+        G_THETA => Greek::Theta,
+        G_BIGTHETA => Greek::BigTheta,
+        G_VARTHETA => Greek::VarTheta,
+        G_IOTA => Greek::Iota,
+        G_KAPPA => Greek::Kappa,
+        G_LAMBDA => Greek::Lambda,
+        G_BIGLAMBDA => Greek::BigLambda,
+        G_MU => Greek::Mu,
+        G_NU => Greek::Nu,
+        G_XI => Greek::Xi,
+        G_BIGXI => Greek::BigXi,
+        G_PI => Greek::Pi,
+        G_BIGPI => Greek::BigPi,
+        G_RHO => Greek::Rho,
+        G_SIGMA => Greek::Sigma,
+        G_BIGSIGMA => Greek::BigSigma,
+        G_TAU => Greek::Tau,
+        G_UPSILON => Greek::Upsilon,
+        G_PHI => Greek::Phi,
+        G_BIGPHI => Greek::BigPhi,
+        G_VARPHI => Greek::VarPhi,
+        G_CHI => Greek::Chi,
+        G_PSI => Greek::Psi,
+        G_BIGPSI => Greek::BigPsi,
+        G_OMEGA => Greek::Omega,
+        G_BIGOMEGA => Greek::BigOmega,
+    }]
+}

src/tokens/mod.rs

@@ -211,7 +211,9 @@ pub enum Greek {
     VarPhi,
     Chi,
     Psi,
+    BigPsi,
     Omega,
+    BigOmega,
 }
 
 #[derive(Debug, Clone)]