c - 如何找到不止一次出现并使用 str 替换？

Question

我的家庭作业是读取一个文件，存储目标词（用# 分隔）和替换词（也用# 分隔）和原始字符串（它们没有#）。

我也不能假设最大 str 长度或最大单词数。

例如：

#uic#e# // uic = target string   e = replacement string
juice  // find substring "uic"  and replace it with 'e' resulting in "jee"
quicken  // qeken
quiche   // qehe
uicuicuick // eeek
#pp##   // pp = target string   nothing = replacement string
apples  //ales
copper  // coer
bopped  //boed
#t#tttttt#  // t = target string   tttttt = replacement string
tut tut // ttttttutttttt ttttttutttttt
tttttttttttttttttttttttttttttttttttttttttttttttttttt // last string = 
                                                 //# of t's * 6

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除了弄清楚如何使用带有替换字符串的目标字符串之外，我已经完成了一切。有可能做到strstr吗？我知道它指向第一次出现，但是否可以让它指向字符串中的每一次出现？请告诉我使用伪代码。谢谢！

Answer 1

Using strstr() to find the address of the first occurrence, call it address, then you could use strstr() again on address + strlen(target_string) to find the occurrences in the rest of the string.