lsh: tighten numeric regex patterns

Author: barkure

crates/lsh/definitions/bash.lsh

@@ -44,7 +44,7 @@ pub fn bash() {
             } else {
                 yield keyword.other;
             }
-        } else if /-?(?:0[xX][\da-fA-F]+|\d+\.?\d*|\.\d+)(?:[eE][+-]?\d+)?/ {
+        } else if /-?(?:(?i:0x[\da-fA-F]+)|\d+\.?\d*|\.\d+)(?i:e[+-]?\d+)?/ {
             if /\w+/ {
                 yield other;
             } else {

crates/lsh/definitions/javascript.lsh

@@ -57,7 +57,7 @@ pub fn javascript() {
             } else {
                 yield constant.language;
             }
-        } else if /-?(?:0[xX][\da-fA-F]+|0[bB][01]+|0[oO][0-7]+|\d+\.?\d*|\.\d+)(?:[eE][+-]?\d+)?/ {
+        } else if /-?(?:(?i:0x[\da-fA-F]+)|(?i:0b[01]+)|(?i:0o[0-7]+)|\d+\.?\d*|\.\d+)(?i:e[+-]?\d+)?/ {
             if /\w+/ {
                 yield other;
             } else {

crates/lsh/definitions/python.lsh

@@ -52,7 +52,7 @@ pub fn python() {
             } else {
                 yield constant.language;
             }
-        } else if /-?(?:0[xX][\da-fA-F]+|0[bB][01]+|0[oO][0-7]+|\d+\.?\d*|\.\d+)(?:[eE][+-]?\d+)?(?:[jJ])?/ {
+        } else if /-?(?:(?i:0x[\da-fA-F]+)|(?i:0b[01]+)|(?i:0o[0-7]+)|\d+\.?\d*|\.\d+)(?i:e[+-]?\d+)?(?i:j)?/ {
             if /\w+/ {
                 yield other;
             } else {

crates/lsh/definitions/zsh.lsh

@@ -43,7 +43,7 @@ pub fn zsh() {
             } else {
                 yield keyword.other;
             }
-        } else if /-?(?:0[xX][\da-fA-F]+|\d+\.?\d*|\.\d+)(?:[eE][+-]?\d+)?/ {
+        } else if /-?(?:(?i:0x[\da-fA-F]+)|\d+\.?\d*|\.\d+)(?i:e[+-]?\d+)?/ {
             if /\w+/ {
                 yield other;
             } else {