Add vim syntax and indent support for ProvideX/PVX source filesHEADmaster

Highlights comments, strings, labels, control flow, and the object
method-call operator; indents to match the convention encoded in
native-sage-connector's formatpvx.pl (one tab per block level).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/syntax/pvx.vim b/syntax/pvx.vim
new file mode 100644
index 0000000..d7210a4
--- /dev/null
+++ b/syntax/pvx.vim
@@ -0,0 +1,76 @@
+" Vim syntax file
+" Language:    ProvideX / PVX (Sage 100 business object source, *.pvxsrc)
+" Maintainer:  native-sage-connector
+
+if exists("b:current_syntax")
+  finish
+endif
+
+" PVX keywords are case-insensitive in practice (mixed-case is common).
+syntax case ignore
+
+" --- Comments -------------------------------------------------------
+syn keyword pvxTodo TODO FIXME XXX NOTE contained
+syn match   pvxComment "!.*$" contains=pvxTodo,@Spell
+
+" --- Strings & literals ---------------------------------------------
+" Doubled quotes ("") inside a string are a literal embedded quote.
+syn region  pvxString start=/"/ skip=/""/ end=/"/
+
+" $$ is the "any/blank key" marker used in select/begin ranges.
+syn match   pvxByteLiteral "\$\$"
+" $XX$ is a two-digit hex byte literal, e.g. $8A$ (field separator).
+syn match   pvxByteLiteral "\$[0-9A-Fa-f][0-9A-Fa-f]\$"
+
+syn match   pvxNumber "\<\d\+\(\.\d\+\)\?\>"
+
+" Pseudo-labels used as err=/dom= targets (*next, *break, *resume, ...)
+syn match   pvxPseudoLabel "\*\h\w*"
+
+" Labels: BARE_WORD: alone on a line (optionally trailing a comment)
+syn match   pvxLabel "^\s*[A-Za-z_][A-Za-z0-9_.]*:\s*\(!.*\)\=$"
+
+" Object method-call operator: obj'MethodName(
+syn match   pvxMethodCall "'\h\w*"
+
+" --- Statements / control flow --------------------------------------
+syn keyword pvxConditional if then else switch case default
+syn keyword pvxRepeat      for to step next while wend repeat until
+syn keyword pvxLabelKw     break continue exit goto gosub return stop
+
+syn keyword pvxStatement
+      \ open close read write dim remove call select from begin where
+      \ sep iol rec key err dom execute drop object on error try catch
+      \ finally let print input rem
+
+syn keyword pvxStructure
+      \ def class like function perform local public global common
+      \ create delete required end
+
+syn keyword pvxOperator and or not
+
+" --- Built-in functions ----------------------------------------------
+syn keyword pvxFunction
+      \ nul pos tbl ucs lcs mid str stp pad varchar sub new find len
+      \ num evn clear msg dte lst vis dll max min val kec tim mod fib
+      \ lof eof dir exists chr asc int sqr rnd cvs cvt day abs kgen
+      \ ioc iol ios opt lpt ptr env exp log pi sgn dle fin fid dlm dod
+
+" --- Highlight links --------------------------------------------------
+hi def link pvxComment      Comment
+hi def link pvxTodo         Todo
+hi def link pvxString       String
+hi def link pvxByteLiteral  SpecialChar
+hi def link pvxNumber       Number
+hi def link pvxPseudoLabel  Special
+hi def link pvxLabel        Label
+hi def link pvxMethodCall   Function
+hi def link pvxConditional  Conditional
+hi def link pvxRepeat       Repeat
+hi def link pvxLabelKw      Keyword
+hi def link pvxStatement    Statement
+hi def link pvxStructure    Structure
+hi def link pvxOperator     Operator
+hi def link pvxFunction     Function
+
+let b:current_syntax = "pvx"