| Bram Moolenaar | 071d427 | 2004-06-13 20:20:40 +0000 | [diff] [blame] | 1 | " IDL (Interactive Data Language) indent file. |
| 2 | " Language: IDL (ft=idlang) |
| 3 | " Last change: 2002 Sep 23 |
| 4 | " Maintainer: Aleksandar Jelenak <ajelenak AT yahoo.com> |
| 5 | |
| 6 | " Only load this indent file when no other was loaded. |
| 7 | if exists("b:did_indent") |
| 8 | finish |
| 9 | endif |
| 10 | let b:did_indent = 1 |
| 11 | |
| 12 | setlocal indentkeys=o,O,0=endif,0=ENDIF,0=endelse,0=ENDELSE,0=endwhile, |
| 13 | \0=ENDWHILE,0=endfor,0=ENDFOR,0=endrep,0=ENDREP |
| 14 | |
| 15 | setlocal indentexpr=GetIdlangIndent(v:lnum) |
| 16 | |
| 17 | " Only define the function once. |
| 18 | if exists("*GetIdlangIndent") |
| 19 | finish |
| 20 | endif |
| 21 | |
| 22 | function GetIdlangIndent(lnum) |
| 23 | " First non-empty line above the current line. |
| 24 | let pnum = prevnonblank(v:lnum-1) |
| 25 | " v:lnum is the first non-empty line -- zero indent. |
| 26 | if pnum == 0 |
| 27 | return 0 |
| 28 | endif |
| 29 | " Second non-empty line above the current line. |
| 30 | let pnum2 = prevnonblank(pnum-1) |
| 31 | |
| 32 | " Current indent. |
| 33 | let curind = indent(pnum) |
| 34 | |
| 35 | " Indenting of continued lines. |
| 36 | if getline(pnum) =~ '\$\s*\(;.*\)\=$' |
| 37 | if getline(pnum2) !~ '\$\s*\(;.*\)\=$' |
| 38 | let curind = curind+&sw |
| 39 | endif |
| 40 | else |
| 41 | if getline(pnum2) =~ '\$\s*\(;.*\)\=$' |
| 42 | let curind = curind-&sw |
| 43 | endif |
| 44 | endif |
| 45 | |
| 46 | " Indenting blocks of statements. |
| 47 | if getline(v:lnum) =~? '^\s*\(endif\|endelse\|endwhile\|endfor\|endrep\)\>' |
| 48 | if getline(pnum) =~? 'begin\>' |
| 49 | elseif indent(v:lnum) > curind-&sw |
| 50 | let curind = curind-&sw |
| 51 | else |
| 52 | return -1 |
| 53 | endif |
| 54 | elseif getline(pnum) =~? 'begin\>' |
| 55 | if indent(v:lnum) < curind+&sw |
| 56 | let curind = curind+&sw |
| 57 | else |
| 58 | return -1 |
| 59 | endif |
| 60 | endif |
| 61 | return curind |
| 62 | endfunction |
| 63 | |