docs: forgotten entities from the TVM upgrade PR

.github/workflows/external-links.yml

@@ -3,7 +3,7 @@ name: Link check
 on:
   workflow_dispatch: # on demand launches, if needed
   schedule:
-    - cron: "0 0 * * 2" # 00:00 on Tuesday, near the dependabot.yml
+    - cron: "5 0 * * 2" # 00:05 on Tuesday, near the dependabot.yml
 
 jobs:
   linkcheck:
@@ -19,7 +19,7 @@ jobs:
           args: >
             -n -s https -s http --base 'https://docs.tact-lang.org'
             --exclude-path docs/node_modules
-            --exclude '.*?\\.(?:jpg|png)'
+            --exclude '\.(?:jpg|png)$'
             docs/README.md './docs/**/*.mdx'
           output: "/dev/stdout"
           fail: false

dev-docs/CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 ## General information
 
-The Tact smart contract programming language is a statically-typed smart contract programming language which is currently implemented as a transpiler into [FunC](https://docs.ton.org/develop/func), which in its turn compiles down to the [TVM](https://docs.ton.org/learn/tvm-instructions/tvm-overview) bitcode. This implementation strategy is likely to change in the future.
+The Tact smart contract programming language is a statically-typed smart contract programming language which is currently implemented as a transpiler into [FunC](https://docs.ton.org/v3/documentation/smart-contracts/func/overview), which in its turn compiles down to the [TVM](https://docs.ton.org/learn/tvm-instructions/tvm-overview) bitcode. This implementation strategy is likely to change in the future.
 
 The Tact compiler parses the input source code into an abstract syntax tree, type-checks it, generates FunC code, runs the FunC compiler, which produces the corresponding [Fift](https://docs.ton.org/develop/fift/overview) code and a TVM binary in the [BoC](https://docs.ton.org/develop/data-formats/cell-boc) format.
 

docs/grammars/grammar-tact.json

@@ -1,12 +1,9 @@
 {
   "name": "tact",
-  "displayName": "Tact",
   "scopeName": "source.tact",
   "fileTypes": [
     "tact"
   ],
-  "foldingStartMarker": "\\{\\s*$",
-  "foldingStopMarker": "^\\s*\\}",
   "patterns": [
     {
       "include": "#comment"
@@ -84,7 +81,7 @@
     },
 
     "todo": {
-      "match": "(?i)\\b(FIXME|TODO|CHANGED|XXX|IDEA|HACK|NOTE|REVIEW|NB|BUG)\\b(?-i)",
+      "match": "\\b(FIXME|TODO|CHANGED|XXX|IDEA|HACK|NOTE|REVIEW|NB|BUG)\\b",
       "name": "keyword.comment.todo.tact"
     },
 
@@ -143,7 +140,7 @@
           "begin": "(?<!\\.)(asm)\\s*(\\()",
           "beginCaptures": {
             "1": {
-              "name": "entity.other.attribute-name.tact"
+              "name": "keyword.other.asm.tact"
             },
             "2": {
               "name": "punctuation.brackets.round.tact"
@@ -177,8 +174,13 @@
         },
         {
           "comment": "Fallback match",
-          "match": "(?<!\\.)\\b(@name|@interface|asm)\\b",
+          "match": "(?<!\\.)\\b(@name|@interface)\\b",
           "name": "entity.other.attribute-name.tact"
+        },
+        {
+          "comment": "Fallback match",
+          "match": "(?<!\\.)\\b(asm)\\b",
+          "name": "keyword.other.asm.tact"
         }
       ]
     },
@@ -402,7 +404,7 @@
         "comment": "Serialization",
         "patterns": [
           {
-            "match": "(?<!\\.)\\b(as)\\s+(coins|varu?int(?:32|16)|remaining|bytes(?:64|32)|int257|u?int(?:2[0-5][0-6]|1[0-9][0-9]|[1-9][0-9]?))\\b",
+            "match": "(?<!\\.)\\b(as)\\s+(coins|varu?int(?:32|16)|remaining|bytes(?:32|64)|int257|u?int(?:25[0-6]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]?))\\b",
             "captures": {
               "1": {
                 "name": "keyword.other.as.tact storage.modifier.tact"

docs/src/content/docs/book/message-mode.mdx

@@ -5,17 +5,20 @@ description: "Messages are sent with the mode param of a struct SendParameters.
 
 import { Badge } from '@astrojs/starlight/components';
 
-As it was previously mentioned, messages are sent with the `mode` param of a struct `SendParameters{:tact}`. It's an [`Int{:tact}`][int] value, which is combined from base modes and optional flags, which are also [`Int{:tact}`][int] values.
+As it was previously mentioned, messages sent via [`send(){:tact}`](/ref/core-common#send) function utilize the `mode` param of the `SendParameters{:tact}` structure. The `mode` is an [`Int{:tact}`][int] value, which is combined from base modes and optional flags, which are also [`Int{:tact}`][int] values.
 
 It's possible to use raw [`Int{:tact}`][int] values and manually provide them for the `mode`, but for your convenience there's a set of constants which you may use to construct the compound `mode` with ease. Take a look at the following tables for more information on base modes and optional flags.
 
+Note that there are other [message sending functions](/book/send#message-sending-functions) — they do not use the `SendParameters{:tact}` [Struct](/book/structs-and-messages#structs), but accept the `mode` as one of their parameters.
+
 ## Base modes
 
 Mode value | Constant name                 | Description
 ---------: | :---------------------------- | -----------
 $0$        | <Badge text="Since Tact 1.6 (not released yet)" variant="tip"/> `SendDefaultMode{:tact}` | Ordinary message (default).
 $64$       | `SendRemainingValue{:tact}`   | Carry all the remaining value of the inbound message in addition to the value initially indicated in the new message.
 $128$      | `SendRemainingBalance{:tact}` | Carry all the remaining balance of the current smart contract instead of the value originally indicated in the message.
+$1024$     | <Badge text="Since Tact 1.5" variant="tip"/> `SendOnlyEstimateFee{:tact}` | Doesn't send the message, only estimates the forward fees if the [message sending function](/book/send#message-sending-functions) computes those.
 
 ## Optional flags
 

docs/src/content/docs/book/send.mdx

@@ -153,6 +153,7 @@ Read more about all message sending functions in the Reference:
 * [`self.reply(){:tact}`](/ref/core-base#self-reply)
 * [`self.forward(){:tact}`](/ref/core-base#self-forward)
 * [`nativeSendMessage(){:tact}`](/ref/core-advanced#nativesendmessage)
+* [`nativeSendMessageReturnForwardFee(){:tact}`](/ref/core-advanced#nativesendmessagereturnforwardfee)
 
 [p]: /book/types#primitive-types
 [int]: /book/integers

docs/src/content/docs/ref/core-advanced.mdx

@@ -442,6 +442,18 @@ Attempts to queue more than $255$ messages throw an exception with an [exit code
 
 :::
 
+## nativeSendMessageReturnForwardFee
+
+<Badge text="Available since Tact 1.5" variant="tip" size="medium"/><p/>
+
+```tact
+fun nativeSendMessageReturnForwardFee(cell: Cell, mode: Int): Int;
+```
+
+Similar to [`nativeSendMessage(){:tact}`](#nativesendmessage), but also calculates and returns the [forward fee][forward-fee] in [nanoToncoins][nanotoncoin].
+
+Attempts to queue more than $255$ messages throw an exception with an [exit code 33](/book/exit-codes#33): `Action list is too long`.
+
 ## nativeReserve
 
 ```tact