Some miscellaneous refactoring and copy-editing

include/asm/charmap.hpp

@@ -20,7 +20,7 @@ void charmap_Push();
 void charmap_Pop();
 void charmap_CheckStack();
 void charmap_Add(std::string const &mapping, std::vector<int32_t> &&value);
-bool charmap_HasChar(std::string const &input);
+bool charmap_HasChar(std::string const &mapping);
 std::vector<int32_t> charmap_Convert(std::string const &input);
 size_t charmap_ConvertNext(std::string_view &input, std::vector<int32_t> *output);
 

man/rgbasm.5

@@ -1052,7 +1052,7 @@ and
 .Ic WRAMX
 types are still considered different.
 .It
-Different constraints (alignment, bank, etc.) can be specified for each unionized section declaration, but they must all be compatible.
+Different constraints (alignment, bank, etc.) can be specified for each section fragment declaration, but they must all be compatible.
 For example, alignment must be compatible with any fixed address, all specified banks must be the same, etc.
 .It
 A section fragment may not be unionized; after all, that wouldn't make much sense.

src/asm/charmap.cpp

@@ -163,11 +163,11 @@ void charmap_Add(std::string const &mapping, std::vector<int32_t> &&value) {
 	std::swap(node.value, value);
 }
 
-bool charmap_HasChar(std::string const &input) {
+bool charmap_HasChar(std::string const &mapping) {
 	Charmap const &charmap = *currentCharmap;
 	size_t nodeIdx = 0;
 
-	for (char c : input) {
+	for (char c : mapping) {
 		nodeIdx = charmap.nodes[nodeIdx].next[static_cast<uint8_t>(c)];
 
 		if (!nodeIdx) {

src/asm/lexer.cpp

@@ -239,16 +239,16 @@ static std::unordered_map<std::string, int, CaseInsensitive, CaseInsensitive> ke
     {"BITWIDTH",      T_(OP_BITWIDTH)      },
     {"TZCOUNT",       T_(OP_TZCOUNT)       },
 
-    {"STRCMP",        T_(OP_STRCMP)        },
-    {"STRIN",         T_(OP_STRIN)         },
-    {"STRRIN",        T_(OP_STRRIN)        },
-    {"STRSUB",        T_(OP_STRSUB)        },
-    {"STRLEN",        T_(OP_STRLEN)        },
     {"STRCAT",        T_(OP_STRCAT)        },
-    {"STRUPR",        T_(OP_STRUPR)        },
-    {"STRLWR",        T_(OP_STRLWR)        },
-    {"STRRPL",        T_(OP_STRRPL)        },
+    {"STRCMP",        T_(OP_STRCMP)        },
     {"STRFMT",        T_(OP_STRFMT)        },
+    {"STRIN",         T_(OP_STRIN)         },
+    {"STRLEN",        T_(OP_STRLEN)        },
+    {"STRLWR",        T_(OP_STRLWR)        },
+    {"STRRIN",        T_(OP_STRRIN)        },
+    {"STRRPL",        T_(OP_STRRPL)        },
+    {"STRSUB",        T_(OP_STRSUB)        },
+    {"STRUPR",        T_(OP_STRUPR)        },
 
     {"CHARLEN",       T_(OP_CHARLEN)       },
     {"CHARSUB",       T_(OP_CHARSUB)       },

src/asm/parser.y

@@ -1474,13 +1474,11 @@ relocexpr_no_str:
 		$$.makeNumber($3.compare($5));
 	}
 	| OP_STRIN LPAREN string COMMA string RPAREN {
-		auto pos = $3.find($5);
-
+		size_t pos = $3.find($5);
 		$$.makeNumber(pos != std::string::npos ? pos + 1 : 0);
 	}
 	| OP_STRRIN LPAREN string COMMA string RPAREN {
-		auto pos = $3.rfind($5);
-
+		size_t pos = $3.rfind($5);
 		$$.makeNumber(pos != std::string::npos ? pos + 1 : 0);
 	}
 	| OP_STRLEN LPAREN string RPAREN {
@@ -1532,19 +1530,16 @@ string:
 	| OP_STRSUB LPAREN string COMMA iconst COMMA uconst RPAREN {
 		size_t len = strlenUTF8($3, false);
 		uint32_t pos = adjustNegativePos($5, len, "STRSUB");
-
 		$$ = strsubUTF8($3, pos, $7);
 	}
 	| OP_STRSUB LPAREN string COMMA iconst RPAREN {
 		size_t len = strlenUTF8($3, false);
 		uint32_t pos = adjustNegativePos($5, len, "STRSUB");
-
 		$$ = strsubUTF8($3, pos, pos > len ? 0 : len + 1 - pos);
 	}
 	| OP_CHARSUB LPAREN string COMMA iconst RPAREN {
 		size_t len = charlenUTF8($3);
 		uint32_t pos = adjustNegativePos($5, len, "CHARSUB");
-
 		$$ = charsubUTF8($3, pos);
 	}
 	| OP_STRCAT LPAREN RPAREN {
@@ -2520,7 +2515,7 @@ static std::string strsubUTF8(std::string const &str, uint32_t pos, uint32_t len
 	size_t index = 0;
 	uint32_t state = 0;
 	uint32_t codepoint = 0;
-	uint32_t curPos = 1; // RGBASM strings are 1-indexed!
+	uint32_t curPos = 1;
 
 	// Advance to starting position in source string.
 	while (ptr[index] && curPos < pos) {
@@ -2607,7 +2602,7 @@ static std::string charsubUTF8(std::string const &str, uint32_t pos) {
 }
 
 static uint32_t adjustNegativePos(int32_t pos, size_t len, char const *functionName) {
-	// STRSUB and CHARSUB adjust negative `pos` arguments the same way,
+	// STRSUB and CHARSUB adjust negative position arguments the same way,
 	// such that position -1 is the last character of a string.
 	if (pos < 0) {
 		pos += len + 1;

src/asm/symbol.cpp

@@ -566,9 +566,7 @@ std::string sym_MakeAnonLabelName(uint32_t ofs, bool neg) {
 		}
 	}
 
-	std::string anon("!");
-	anon += std::to_string(id);
-	return anon;
+	return "!"s + std::to_string(id);
 }
 
 void sym_Export(std::string const &symName) {