stdlib/string: 补组合操作 rwfunc + string·parsefloat（#157） - #343
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string 库此前只有 native rwir 一层，本次补上**组合操作**层，命名取 C/Python/Rust/TypeScript/Go 五语言共识名： - 查/比：eqfold、count、rfind - 修剪：trim、trimstart、trimend、padstart、padend - 切分/拼接：split、splitn、lines、fields、join、cut - 替换：replace、replacen - 大小写：capitalize、title、swapcase - 判定：isalpha/isdigit/isalnum/isxdigit/isspace/isupper/islower/ispunct、allinset 另新增 native rwir **string·parsefloat**（对齐 Go strconv.ParseFloat / Python float() / Rust parse::<f64>()）：整串须消费完，否则 ValueError。 配套：runtime/rwir_string.c 实现、myrwircaps 注册、rwir_internal.h 原型、 layout/lower.rs 返回类型推断（→ float64）。 tutorial：新增 13-stdlib/string/03-search…07-classify，11-string/08-strconv 跟随调整；kvlangbrief 速览同步。 Closes #157 Co-Authored-By: Claude Code <noreply@anthropic.com>
native rwir（字节级，runtime-rs：size/read/write/append/list/del/mkdir/ exists）之上补文本级组合： - readtext / writetext 文件 ↔ []char/utf32 文本（UTF-8 解码/编码往返） - match 名字段 shell 通配（* 任意串、? 单字符） - glob 按通配展开路径 - grep 逐行查找（文件或目录下匹配 glob 的成员） - multi 事务式多处编辑（逐条精确替换，全部成功才落盘） 文本约定：按 UTF-8 解码为 []char/utf32 后操作（只有定宽 char/utf32 可索引 /切片），落盘再编码回 UTF-8；字节级 I/O 仍走 native rwir。 tutorial：新增 14-networld/11-fs-text。 Co-Authored-By: Claude Code <noreply@anthropic.com>
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1.
stdlib/string补组合操作层（Closes #157）此前只有 native rwir 一层，本次补上组合操作，命名取 C/Python/Rust/TypeScript/Go 五语言共识名：
eqfoldcountrfindtrimtrimstarttrimendpadstartpadendsplitsplitnlinesfieldsjoincutreplacereplacencapitalizetitleswapcaseisalphaisdigitisalnumisxdigitisspaceisupperislowerispunctallinset另新增 native rwir
string·parsefloat（对齐 Gostrconv.ParseFloat/ Pythonfloat()/ Rustparse::<f64>()）——整串须消费完，否则ValueError。配套 runtime 实现 + myrwircaps 注册 +rwir_internal.h原型 + layout 返回类型推断。2.
stdlib/networld新增fs库native rwir（字节级）之上补文本级组合：
readtext/writetext（UTF-8 往返）、match（shell 通配）、glob、grep、multi（事务式多处编辑，全部成功才落盘）。tutorial
新增
13-stdlib/string/03-search…07-classify、14-networld/11-fs-text；11-string/08-strconv跟随调整。Closes #157
🤖 Generated with Claude Code