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Diffstat (limited to 'src/nvim/eval.c')
-rw-r--r--src/nvim/eval.c281
1 files changed, 135 insertions, 146 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index 479ed2afc9..3c35b1dfa5 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -1113,19 +1113,17 @@ typval_T *eval_expr(char_u *arg, char_u **nextcmd)
}
-/*
- * Call some vimL function and return the result in "*rettv".
- * Uses argv[argc] for the function arguments. Only Number and String
- * arguments are currently supported.
- * Returns OK or FAIL.
- */
-int
-call_vim_function (
+// Call some vimL function and return the result in "*rettv".
+// Uses argv[argc] for the function arguments. Only Number and String
+// arguments are currently supported.
+//
+// Return OK or FAIL.
+int call_vim_function(
char_u *func,
int argc,
char_u **argv,
- int safe, /* use the sandbox */
- int str_arg_only, /* all arguments are strings */
+ int safe, // use the sandbox
+ int str_arg_only, // all arguments are strings
typval_T *rettv
)
{
@@ -1138,18 +1136,19 @@ call_vim_function (
typval_T *argvars = xmalloc((argc + 1) * sizeof(typval_T));
for (int i = 0; i < argc; i++) {
- /* Pass a NULL or empty argument as an empty string */
+ // Pass a NULL or empty argument as an empty string
if (argv[i] == NULL || *argv[i] == NUL) {
argvars[i].v_type = VAR_STRING;
argvars[i].vval.v_string = (char_u *)"";
continue;
}
- if (str_arg_only)
+ if (str_arg_only) {
len = 0;
- else
- /* Recognize a number argument, the others must be strings. */
- vim_str2nr(argv[i], NULL, &len, TRUE, TRUE, TRUE, &n, NULL);
+ } else {
+ // Recognize a number argument, the others must be strings.
+ vim_str2nr(argv[i], NULL, &len, true, true, true, &n, NULL);
+ }
if (len != 0 && len == (int)STRLEN(argv[i])) {
argvars[i].v_type = VAR_NUMBER;
argvars[i].vval.v_number = n;
@@ -1166,16 +1165,17 @@ call_vim_function (
rettv->v_type = VAR_UNKNOWN; /* clear_tv() uses this */
ret = call_func(func, (int)STRLEN(func), rettv, argc, argvars,
- curwin->w_cursor.lnum, curwin->w_cursor.lnum,
- &doesrange, TRUE, NULL);
+ curwin->w_cursor.lnum, curwin->w_cursor.lnum,
+ &doesrange, true, NULL);
if (safe) {
--sandbox;
restore_funccal(save_funccalp);
}
xfree(argvars);
- if (ret == FAIL)
+ if (ret == FAIL) {
clear_tv(rettv);
+ }
return ret;
}
@@ -4025,38 +4025,35 @@ eval6 (
return OK;
}
-/*
- * Handle sixth level expression:
- * number number constant
- * "string" string constant
- * 'string' literal string constant
- * &option-name option value
- * @r register contents
- * identifier variable value
- * function() function call
- * $VAR environment variable
- * (expression) nested expression
- * [expr, expr] List
- * {key: val, key: val} Dictionary
- *
- * Also handle:
- * ! in front logical NOT
- * - in front unary minus
- * + in front unary plus (ignored)
- * trailing [] subscript in String or List
- * trailing .name entry in Dictionary
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Return OK or FAIL.
- */
-static int
-eval7 (
+// Handle sixth level expression:
+// number number constant
+// "string" string constant
+// 'string' literal string constant
+// &option-name option value
+// @r register contents
+// identifier variable value
+// function() function call
+// $VAR environment variable
+// (expression) nested expression
+// [expr, expr] List
+// {key: val, key: val} Dictionary
+//
+// Also handle:
+// ! in front logical NOT
+// - in front unary minus
+// + in front unary plus (ignored)
+// trailing [] subscript in String or List
+// trailing .name entry in Dictionary
+//
+// "arg" must point to the first non-white of the expression.
+// "arg" is advanced to the next non-white after the recognized expression.
+//
+// Return OK or FAIL.
+static int eval7(
char_u **arg,
typval_T *rettv,
int evaluate,
- int want_string /* after "." operator */
+ int want_string // after "." operator
)
{
long n;
@@ -4066,24 +4063,19 @@ eval7 (
int ret = OK;
char_u *alias;
- /*
- * Initialise variable so that clear_tv() can't mistake this for a
- * string and free a string that isn't there.
- */
+ // Initialise variable so that clear_tv() can't mistake this for a
+ // string and free a string that isn't there.
rettv->v_type = VAR_UNKNOWN;
- /*
- * Skip '!' and '-' characters. They are handled later.
- */
+ // Skip '!' and '-' characters. They are handled later.
start_leader = *arg;
- while (**arg == '!' || **arg == '-' || **arg == '+')
+ while (**arg == '!' || **arg == '-' || **arg == '+') {
*arg = skipwhite(*arg + 1);
+ }
end_leader = *arg;
switch (**arg) {
- /*
- * Number constant.
- */
+ // Number constant.
case '0':
case '1':
case '2':
@@ -4096,27 +4088,30 @@ eval7 (
case '9':
{
char_u *p = skipdigits(*arg + 1);
- int get_float = FALSE;
+ int get_float = false;
- /* We accept a float when the format matches
- * "[0-9]\+\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?". This is very
- * strict to avoid backwards compatibility problems.
- * Don't look for a float after the "." operator, so that
- * ":let vers = 1.2.3" doesn't fail. */
+ // We accept a float when the format matches
+ // "[0-9]\+\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?". This is very
+ // strict to avoid backwards compatibility problems.
+ // Don't look for a float after the "." operator, so that
+ // ":let vers = 1.2.3" doesn't fail.
if (!want_string && p[0] == '.' && ascii_isdigit(p[1])) {
- get_float = TRUE;
+ get_float = true;
p = skipdigits(p + 2);
if (*p == 'e' || *p == 'E') {
++p;
- if (*p == '-' || *p == '+')
+ if (*p == '-' || *p == '+') {
++p;
- if (!ascii_isdigit(*p))
- get_float = FALSE;
- else
+ }
+ if (!ascii_isdigit(*p)) {
+ get_float = false;
+ } else {
p = skipdigits(p + 1);
+ }
+ }
+ if (ASCII_ISALPHA(*p) || *p == '.') {
+ get_float = false;
}
- if (ASCII_ISALPHA(*p) || *p == '.')
- get_float = FALSE;
}
if (get_float) {
float_T f;
@@ -4127,7 +4122,7 @@ eval7 (
rettv->vval.v_float = f;
}
} else {
- vim_str2nr(*arg, NULL, &len, TRUE, TRUE, TRUE, &n, NULL);
+ vim_str2nr(*arg, NULL, &len, true, true, true, &n, NULL);
*arg += len;
if (evaluate) {
rettv->v_type = VAR_NUMBER;
@@ -4137,62 +4132,47 @@ eval7 (
break;
}
- /*
- * String constant: "string".
- */
+ // String constant: "string".
case '"': ret = get_string_tv(arg, rettv, evaluate);
break;
- /*
- * Literal string constant: 'str''ing'.
- */
+ // Literal string constant: 'str''ing'.
case '\'': ret = get_lit_string_tv(arg, rettv, evaluate);
break;
- /*
- * List: [expr, expr]
- */
+ // List: [expr, expr]
case '[': ret = get_list_tv(arg, rettv, evaluate);
break;
- /*
- * Dictionary: {key: val, key: val}
- */
+ // Dictionary: {key: val, key: val}
case '{': ret = get_dict_tv(arg, rettv, evaluate);
break;
- /*
- * Option value: &name
- */
+ // Option value: &name
case '&': ret = get_option_tv(arg, rettv, evaluate);
break;
- /*
- * Environment variable: $VAR.
- */
+ // Environment variable: $VAR.
case '$': ret = get_env_tv(arg, rettv, evaluate);
break;
- /*
- * Register contents: @r.
- */
+ // Register contents: @r.
case '@': ++*arg;
if (evaluate) {
rettv->v_type = VAR_STRING;
rettv->vval.v_string = get_reg_contents(**arg, kGRegExprSrc);
}
- if (**arg != NUL)
+ if (**arg != NUL) {
++*arg;
+ }
break;
- /*
- * nested expression: (expression).
- */
+ // nested expression: (expression).
case '(': *arg = skipwhite(*arg + 1);
- ret = eval1(arg, rettv, evaluate); /* recursive! */
- if (**arg == ')')
+ ret = eval1(arg, rettv, evaluate); // recursive!
+ if (**arg == ')') {
++*arg;
- else if (ret == OK) {
+ } else if (ret == OK) {
EMSG(_("E110: Missing ')'"));
clear_tv(rettv);
ret = FAIL;
@@ -4204,71 +4184,72 @@ eval7 (
}
if (ret == NOTDONE) {
- /*
- * Must be a variable or function name.
- * Can also be a curly-braces kind of name: {expr}.
- */
+ // Must be a variable or function name.
+ // Can also be a curly-braces kind of name: {expr}.
s = *arg;
- len = get_name_len(arg, &alias, evaluate, TRUE);
- if (alias != NULL)
+ len = get_name_len(arg, &alias, evaluate, true);
+ if (alias != NULL) {
s = alias;
+ }
- if (len <= 0)
+ if (len <= 0) {
ret = FAIL;
- else {
- if (**arg == '(') { /* recursive! */
- /* If "s" is the name of a variable of type VAR_FUNC
- * use its contents. */
+ } else {
+ if (**arg == '(') { // recursive!
+ // If "s" is the name of a variable of type VAR_FUNC
+ // use its contents.
s = deref_func_name(s, &len, !evaluate);
- /* Invoke the function. */
+ // Invoke the function.
ret = get_func_tv(s, len, rettv, arg,
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
&len, evaluate, NULL);
- /* If evaluate is FALSE rettv->v_type was not set in
- * get_func_tv, but it's needed in handle_subscript() to parse
- * what follows. So set it here. */
+ // If evaluate is false rettv->v_type was not set in
+ // get_func_tv, but it's needed in handle_subscript() to parse
+ // what follows. So set it here.
if (rettv->v_type == VAR_UNKNOWN && !evaluate && **arg == '(') {
rettv->vval.v_string = empty_string;
rettv->v_type = VAR_FUNC;
}
- /* Stop the expression evaluation when immediately
- * aborting on error, or when an interrupt occurred or
- * an exception was thrown but not caught. */
+ // Stop the expression evaluation when immediately
+ // aborting on error, or when an interrupt occurred or
+ // an exception was thrown but not caught.
if (aborting()) {
- if (ret == OK)
+ if (ret == OK) {
clear_tv(rettv);
+ }
ret = FAIL;
}
- } else if (evaluate)
- ret = get_var_tv(s, len, rettv, TRUE, FALSE);
- else
+ } else if (evaluate) {
+ ret = get_var_tv(s, len, rettv, true, false);
+ } else {
ret = OK;
+ }
}
xfree(alias);
}
*arg = skipwhite(*arg);
- /* Handle following '[', '(' and '.' for expr[expr], expr.name,
- * expr(expr). */
- if (ret == OK)
- ret = handle_subscript(arg, rettv, evaluate, TRUE);
+ // Handle following '[', '(' and '.' for expr[expr], expr.name,
+ // expr(expr).
+ if (ret == OK) {
+ ret = handle_subscript(arg, rettv, evaluate, true);
+ }
- /*
- * Apply logical NOT and unary '-', from right to left, ignore '+'.
- */
+ // Apply logical NOT and unary '-', from right to left, ignore '+'.
if (ret == OK && evaluate && end_leader > start_leader) {
- int error = FALSE;
+ int error = false;
int val = 0;
float_T f = 0.0;
- if (rettv->v_type == VAR_FLOAT)
+ if (rettv->v_type == VAR_FLOAT) {
f = rettv->vval.v_float;
- else
+ } else {
val = get_tv_number_chk(rettv, &error);
+ }
if (error) {
clear_tv(rettv);
ret = FAIL;
@@ -4276,15 +4257,17 @@ eval7 (
while (end_leader > start_leader) {
--end_leader;
if (*end_leader == '!') {
- if (rettv->v_type == VAR_FLOAT)
+ if (rettv->v_type == VAR_FLOAT) {
f = !f;
- else
+ } else {
val = !val;
+ }
} else if (*end_leader == '-') {
- if (rettv->v_type == VAR_FLOAT)
+ if (rettv->v_type == VAR_FLOAT) {
f = -f;
- else
+ } else {
val = -val;
+ }
}
}
if (rettv->v_type == VAR_FLOAT) {
@@ -15971,9 +15954,7 @@ static void f_str2float(typval_T *argvars, typval_T *rettv)
rettv->v_type = VAR_FLOAT;
}
-/*
- * "str2nr()" function
- */
+// "str2nr()" function
static void f_str2nr(typval_T *argvars, typval_T *rettv)
{
int base = 10;
@@ -15989,9 +15970,14 @@ static void f_str2nr(typval_T *argvars, typval_T *rettv)
}
p = skipwhite(get_tv_string(&argvars[0]));
- if (*p == '+')
+ if (*p == '+') {
p = skipwhite(p + 1);
- vim_str2nr(p, NULL, NULL, base == 2 ? 2 : 0, base == 8 ? 2 : 0, base == 16 ? 2 : 0, &n, NULL);
+ }
+ vim_str2nr(p, NULL, NULL,
+ base == 2 ? 2 : 0,
+ base == 8 ? 2 : 0,
+ base == 16 ? 2 : 0,
+ &n, NULL);
rettv->vval.v_number = n;
}
@@ -18271,9 +18257,10 @@ long get_tv_number_chk(typval_T *varp, int *denote)
EMSG(_("E703: Using a Funcref as a Number"));
break;
case VAR_STRING:
- if (varp->vval.v_string != NULL)
+ if (varp->vval.v_string != NULL) {
vim_str2nr(varp->vval.v_string, NULL, NULL,
- TRUE, TRUE, TRUE, &n, NULL);
+ true, true, true, &n, NULL);
+ }
return n;
case VAR_LIST:
EMSG(_("E745: Using a List as a Number"));
@@ -18285,10 +18272,12 @@ long get_tv_number_chk(typval_T *varp, int *denote)
EMSG2(_(e_intern2), "get_tv_number()");
break;
}
- if (denote == NULL) /* useful for values that must be unsigned */
+ if (denote == NULL) {
+ // useful for values that must be unsigned
n = -1;
- else
- *denote = TRUE;
+ } else {
+ *denote = true;
+ }
return n;
}
generated by cgit (git 2.34.1) at 2025-11-03 23:07:23 +0000