[200_27] 将 s7.c 中 (scheme base) 里面字符串相关的函数迁移到 s7_liii_string.c

[da-liii]

因为 (scheme base) 中的函数太多了，所以不能都迁移到 s7_scheme_base.c

[Sahilll10]

Hi @da-liii , I'd like to take this if it's still open.

My understanding: migrate string-related (scheme base) functions (string-length, string-ref, string-copy, substring, string->list, string-upcase, string=?, etc.) from s7.c into s7_liii_string.c, keeping s7_scheme_base.c from bloating.

Two questions before I start:

1. Should I create s7_liii_string.c from scratch, or does it already exist?
2. Should I use the R7RS (scheme base) string section as the scope, or do you have a specific list?

Thanks!

@da-liii 您好，如果还没人认领，我想做这个。

我的理解是把 s7.c 里 (scheme base) 中字符串相关的函数（string-length、string-ref、string-copy、substring、string->list、string-upcase、string=? 等）迁移到 s7_liii_string.c，避免 s7_scheme_base.c 过大。

开始前有两个问题：

1. s7_liii_string.c 需要从头创建，还是已经有了？
2. 迁移范围以 R7RS (scheme base) 的字符串部分为准，还是您有具体的函数列表？

[da-liii]

Here is the first pull request: #468

Should I use the R7RS (scheme base) string section as the scope, or do you have a specific list?

string section in R7RS

[da-liii]

I suggest migrating only one function implementation at a time.

我建议你每次只迁移一个函数的实现

[Sahilll10]

Hi @da-liii I'd like to contribute to this.
Planning to start with string-length — one function, following the pattern in #468.

@da-liii 我想参与这个任务。计划先迁移 string-length，参照 #468 的方式，每次一个函数

[Sahilll10]

PR #480 submitted for string-length.

已提交 PR #480 ，迁移了 string-length。