$cat test.txt
blablabla
```{r}
blabla
```
blablabla
blablabla
blablabla
```{r}
blablabla
blablabla
imname <- "FIGNAME1"
saveflag <- savepdf(imname)
```
```{r}
blablabla
blablabla
imname <- "FIGNAME2"
saveflag <- savepdf(imname)
```
blablabla
交換したい項目:
\`\`\`{r}** to **\`\`\`{r figname:FIGNAME1}**, where **FIGNAME1** comes from the line start with **imname**, can be match by **imname.\*".\*"**.
予想出力:
blablabla
```{r}
blabla
```
blablabla
blablabla
blablabla
```{r figname:FIGNAME1}
blablabla
blablabla
imname <- "FIGNAME1"
saveflag <- savepdf(imname)
```
```{r figname:FIGNAME2}
blablabla
blablabla
imname <- "FIGNAME2"
saveflag <- savepdf(imname)
```
blablabla
私は試しましたが、sed
成功しませんでした。
sed -e '/\`\`\`.*r/{:a;N;/^$/p;/imname.*".*"/!{$!ba};s/\`\`\`.*r\(.*imname.*\)"\(.*\)"/```{r figname:\2\1"\2"/}' test.txt
答え1
sed '
/{r}/{ #if line consist {r}
:1 #mark No.1
$!{ #if not last line:
N #append next line
/\n\n/!b1 #if not empty line
} #+return to mark No.1
} #=collect one paragraph(from {r} to empty line)
s/}.*imname <- "\([^"]*\)/ figname:\1&/ #add text after "imname" to "r"
' test.txt